message: test: use f-strings in feature_logging.py
diff: @@ -29,7 +29,7 @@ class LoggingTest(BitcoinTestFramework):
  # test alternative log file name outside datadir
  tempname = os.path.join(self.options.tmpdir, "foo.log")
  - self.restart_node(0, ["-debuglogfile=%s" % tempname])
  + self.restart_node(0, [f"-debuglogfile={tempname}"])
  assert os.path.isfile(tempname)
  # check that invalid log (relative) will cause error
  @@ -37,26 +37,26 @@ class LoggingTest(BitcoinTestFramework):
  invalidname = os.path.join("foo", "foo.log")
  self.stop_node(0)
  exp_stderr = r"Error: Could not open debug log file \S+$"
  - self.nodes[0].assert_start_raises_init_error(["-debuglogfile=%s" % (invalidname)], exp_stderr, match=ErrorMatch.FULL_REGEX)
  + self.nodes[0].assert_start_raises_init_error([f"-debuglogfile={invalidname}"], exp_stderr, match=ErrorMatch.FULL_REGEX)
  assert not os.path.isfile(os.path.join(invdir, "foo.log"))
  # check that invalid log (relative) works after path exists
  self.stop_node(0)
  os.mkdir(invdir)
  - self.start_node(0, ["-debuglogfile=%s" % (invalidname)])
  + self.start_node(0, [f"-debuglogfile={invalidname}"])
  assert os.path.isfile(os.path.join(invdir, "foo.log"))
  # check that invalid log (absolute) will cause error
  self.stop_node(0)
  invdir = os.path.join(self.options.tmpdir, "foo")
  invalidname = os.path.join(invdir, "foo.log")
  - self.nodes[0].assert_start_raises_init_error(["-debuglogfile=%s" % invalidname], exp_stderr, match=ErrorMatch.FULL_REGEX)
  + self.nodes[0].assert_start_raises_init_error([f"-debuglogfile={invalidname}"], exp_stderr, match=ErrorMatch.FULL_REGEX)
  assert not os.path.isfile(os.path.join(invdir, "foo.log"))
  # check that invalid log (absolute) works after path exists
  self.stop_node(0)
  os.mkdir(invdir)
  - self.start_node(0, ["-debuglogfile=%s" % (invalidname)])
  + self.start_node(0, [f"-debuglogfile={invalidname}"])
  assert os.path.isfile(os.path.join(invdir, "foo.log"))
  # check that -nodebuglogfile disables logging
  @@ -67,7 +67,7 @@ class LoggingTest(BitcoinTestFramework):
  assert not os.path.isfile(default_log_path)
  # just sanity check no crash here
  - self.restart_node(0, ["-debuglogfile=%s" % os.devnull])
  + self.restart_node(0, [f"-debuglogfile={os.devnull}"])
  if __name__ == '__main__':
  