```cmake
#
# Copyright 2018 Jeff Bush
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#

macro(add_command_line_tool name)
    set(CMAKE_CXX_FLAGS ${CMAKE_CXX_FLAGS} "-O3")
    set(CMAKE_C_FLAGS ${CMAKE_C_FLAGS} "-O3")
    set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
    add_executable(${name} ${ARGN})
endmacro()
```

Fix minor issue in command line tool cmake module
user
```cmake
#
# Copyright 2018 Jeff Bush
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#

macro(add_command_line_tool name)
    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -O3")
    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -O3")
    set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
    add_executable(${name} ${ARGN})
endmacro()
```
assistant