We are currently solving the following issue within our repository. Here is the issue text:
--- BEGIN ISSUE ---
Logger not work.
**Describe the bug**
Logger did not work at current master commit (https://github.com/huge-success/sanic/commit/7d79a86d4dc48de11cd34e8ba12e41f3a9f9ff18).


**Code snippet**
```python
from sanic import Sanic
from sanic.log import logger
from sanic.response import text


app = Sanic()

@app.listener('before_server_start')
async def setup(app, loop):
    logger.info('INFO')


@app.get('/')
async def test(request):
    return text('hello world')


if __name__ == '__main__':
    app.run()
```
There is no any log/output now.



**Expected behavior**
At `0.8.3` release, it will logging/output some messages like:
```
[2018-11-05 17:34:47 +0800] [12112] [INFO] Goin' Fast @ http://127.0.0.1:8000
[2018-11-05 17:34:47 +0800] [12112] [INFO] INFO
[2018-11-05 17:34:47 +0800] [12112] [INFO] Starting worker [12112]
```


**Environment (please complete the following information):**
 - OS: Ubuntu 18.04
 - Version: https://github.com/huge-success/sanic/commit/7d79a86d4dc48de11cd34e8ba12e41f3a9f9ff18


**Additional context**
It seems that `getLogger()` does not get the correct logger at [line 56](https://github.com/huge-success/sanic/blob/master/sanic/log.py#L56) in `log.py`. The logger is trying to get a logger named `sanic.root`, but it does not exist. Rename the logger `root` at [line 9](https://github.com/huge-success/sanic/blob/master/sanic/log.py#L9) should fix this bug.


--- END ISSUE ---

Below are some code segments, each from a relevant file. One or more of these files may contain bugs.
--- BEGIN FILES ---
Path: `sanic/log.py`
Content:
```
1 import logging
2 import sys
3 
4 
5 LOGGING_CONFIG_DEFAULTS = dict(
6     version=1,
7     disable_existing_loggers=False,
8     loggers={
9         "root": {"level": "INFO", "handlers": ["console"]},
10         "sanic.error": {
11             "level": "INFO",
12             "handlers": ["error_console"],
13             "propagate": True,
14             "qualname": "sanic.error",
15         },
16         "sanic.access": {
17             "level": "INFO",
18             "handlers": ["access_console"],
19             "propagate": True,
20             "qualname": "sanic.access",
21         },
22     },
23     handlers={
24         "console": {
25             "class": "logging.StreamHandler",
26             "formatter": "generic",
27             "stream": sys.stdout,
28         },
29         "error_console": {
30             "class": "logging.StreamHandler",
31             "formatter": "generic",
32             "stream": sys.stderr,
33         },
34         "access_console": {
35             "class": "logging.StreamHandler",
36             "formatter": "access",
37             "stream": sys.stdout,
38         },
39     },
40     formatters={
41         "generic": {
42             "format": "%(asctime)s [%(process)d] [%(levelname)s] %(message)s",
43             "datefmt": "[%Y-%m-%d %H:%M:%S %z]",
44             "class": "logging.Formatter",
45         },
46         "access": {
47             "format": "%(asctime)s - (%(name)s)[%(levelname)s][%(host)s]: "
48             + "%(request)s %(message)s %(status)d %(byte)d",
49             "datefmt": "[%Y-%m-%d %H:%M:%S %z]",
50             "class": "logging.Formatter",
51         },
52     },
53 )
54 
55 
56 logger = logging.getLogger("sanic.root")
57 error_logger = logging.getLogger("sanic.error")
58 access_logger = logging.getLogger("sanic.access")
59
```
--- END FILES ---

Please first localize the bug based on the issue statement, and then generate a patch according to the `git diff` format fenced by three backticks.

Here is an example:

```diff
diff --git a/examples/server_async.py b/examples/server_async.py
--- a/examples/server_async.py
+++ b/examples/server_async.py
@@ -313,4 +313,4 @@
 
 
 if __name__ == "__main__":
-    asyncio.run(run_async_server("."), debug=True)
+    asyncio.run(run_async_server(), debug=True)
diff --git a/examples/server_sync.py b/examples/server_sync.py
--- a/examples/server_sync.py
+++ b/examples/server_sync.py
@@ -313,5 +313,5 @@
 
 
 if __name__ == "__main__":
-    server = run_sync_server(".")
+    server = run_sync_server()
     server.shutdown()

```

diff --git a/sanic/log.py b/sanic/log.py
--- a/sanic/log.py
+++ b/sanic/log.py
@@ -6,7 +6,7 @@
     version=1,
     disable_existing_loggers=False,
     loggers={
-        "root": {"level": "INFO", "handlers": ["console"]},
+        "sanic.root": {"level": "INFO", "handlers": ["console"]},
         "sanic.error": {
             "level": "INFO",
             "handlers": ["error_console"],

{"golden_diff": "diff --git a/sanic/log.py b/sanic/log.py\n--- a/sanic/log.py\n+++ b/sanic/log.py\n@@ -6,7 +6,7 @@\n     version=1,\n     disable_existing_loggers=False,\n     loggers={\n-        \"root\": {\"level\": \"INFO\", \"handlers\": [\"console\"]},\n+        \"sanic.root\": {\"level\": \"INFO\", \"handlers\": [\"console\"]},\n         \"sanic.error\": {\n             \"level\": \"INFO\",\n             \"handlers\": [\"error_console\"],\n", "issue": "Logger not work.\n**Describe the bug**\r\nLogger did not work at current master commit (https://github.com/huge-success/sanic/commit/7d79a86d4dc48de11cd34e8ba12e41f3a9f9ff18).\r\n\r\n\r\n**Code snippet**\r\n```python\r\nfrom sanic import Sanic\r\nfrom sanic.log import logger\r\nfrom sanic.response import text\r\n\r\n\r\napp = Sanic()\r\n\r\n@app.listener('before_server_start')\r\nasync def setup(app, loop):\r\n    logger.info('INFO')\r\n\r\n\r\n@app.get('/')\r\nasync def test(request):\r\n    return text('hello world')\r\n\r\n\r\nif __name__ == '__main__':\r\n    app.run()\r\n```\r\nThere is no any log/output now.\r\n\r\n\r\n\r\n**Expected behavior**\r\nAt `0.8.3` release, it will logging/output some messages like:\r\n```\r\n[2018-11-05 17:34:47 +0800] [12112] [INFO] Goin' Fast @ http://127.0.0.1:8000\r\n[2018-11-05 17:34:47 +0800] [12112] [INFO] INFO\r\n[2018-11-05 17:34:47 +0800] [12112] [INFO] Starting worker [12112]\r\n```\r\n\r\n\r\n**Environment (please complete the following information):**\r\n - OS: Ubuntu 18.04\r\n - Version: https://github.com/huge-success/sanic/commit/7d79a86d4dc48de11cd34e8ba12e41f3a9f9ff18\r\n\r\n\r\n**Additional context**\r\nIt seems that `getLogger()` does not get the correct logger at [line 56](https://github.com/huge-success/sanic/blob/master/sanic/log.py#L56) in `log.py`. The logger is trying to get a logger named `sanic.root`, but it does not exist. Rename the logger `root` at [line 9](https://github.com/huge-success/sanic/blob/master/sanic/log.py#L9) should fix this bug.\r\n\n", "before_files": [{"content": "import logging\nimport sys\n\n\nLOGGING_CONFIG_DEFAULTS = dict(\n    version=1,\n    disable_existing_loggers=False,\n    loggers={\n        \"root\": {\"level\": \"INFO\", \"handlers\": [\"console\"]},\n        \"sanic.error\": {\n            \"level\": \"INFO\",\n            \"handlers\": [\"error_console\"],\n            \"propagate\": True,\n            \"qualname\": \"sanic.error\",\n        },\n        \"sanic.access\": {\n            \"level\": \"INFO\",\n            \"handlers\": [\"access_console\"],\n            \"propagate\": True,\n            \"qualname\": \"sanic.access\",\n        },\n    },\n    handlers={\n        \"console\": {\n            \"class\": \"logging.StreamHandler\",\n            \"formatter\": \"generic\",\n            \"stream\": sys.stdout,\n        },\n        \"error_console\": {\n            \"class\": \"logging.StreamHandler\",\n            \"formatter\": \"generic\",\n            \"stream\": sys.stderr,\n        },\n        \"access_console\": {\n            \"class\": \"logging.StreamHandler\",\n            \"formatter\": \"access\",\n            \"stream\": sys.stdout,\n        },\n    },\n    formatters={\n        \"generic\": {\n            \"format\": \"%(asctime)s [%(process)d] [%(levelname)s] %(message)s\",\n            \"datefmt\": \"[%Y-%m-%d %H:%M:%S %z]\",\n            \"class\": \"logging.Formatter\",\n        },\n        \"access\": {\n            \"format\": \"%(asctime)s - (%(name)s)[%(levelname)s][%(host)s]: \"\n            + \"%(request)s %(message)s %(status)d %(byte)d\",\n            \"datefmt\": \"[%Y-%m-%d %H:%M:%S %z]\",\n            \"class\": \"logging.Formatter\",\n        },\n    },\n)\n\n\nlogger = logging.getLogger(\"sanic.root\")\nerror_logger = logging.getLogger(\"sanic.error\")\naccess_logger = logging.getLogger(\"sanic.access\")\n", "path": "sanic/log.py"}], "after_files": [{"content": "import logging\nimport sys\n\n\nLOGGING_CONFIG_DEFAULTS = dict(\n    version=1,\n    disable_existing_loggers=False,\n    loggers={\n        \"sanic.root\": {\"level\": \"INFO\", \"handlers\": [\"console\"]},\n        \"sanic.error\": {\n            \"level\": \"INFO\",\n            \"handlers\": [\"error_console\"],\n            \"propagate\": True,\n            \"qualname\": \"sanic.error\",\n        },\n        \"sanic.access\": {\n            \"level\": \"INFO\",\n            \"handlers\": [\"access_console\"],\n            \"propagate\": True,\n            \"qualname\": \"sanic.access\",\n        },\n    },\n    handlers={\n        \"console\": {\n            \"class\": \"logging.StreamHandler\",\n            \"formatter\": \"generic\",\n            \"stream\": sys.stdout,\n        },\n        \"error_console\": {\n            \"class\": \"logging.StreamHandler\",\n            \"formatter\": \"generic\",\n            \"stream\": sys.stderr,\n        },\n        \"access_console\": {\n            \"class\": \"logging.StreamHandler\",\n            \"formatter\": \"access\",\n            \"stream\": sys.stdout,\n        },\n    },\n    formatters={\n        \"generic\": {\n            \"format\": \"%(asctime)s [%(process)d] [%(levelname)s] %(message)s\",\n            \"datefmt\": \"[%Y-%m-%d %H:%M:%S %z]\",\n            \"class\": \"logging.Formatter\",\n        },\n        \"access\": {\n            \"format\": \"%(asctime)s - (%(name)s)[%(levelname)s][%(host)s]: \"\n            + \"%(request)s %(message)s %(status)d %(byte)d\",\n            \"datefmt\": \"[%Y-%m-%d %H:%M:%S %z]\",\n            \"class\": \"logging.Formatter\",\n        },\n    },\n)\n\n\nlogger = logging.getLogger(\"sanic.root\")\nerror_logger = logging.getLogger(\"sanic.error\")\naccess_logger = logging.getLogger(\"sanic.access\")\n", "path": "sanic/log.py"}]}