message: style: fix spellos
diff: @@ -750,7 +750,7 @@ class Path:
  return id(self)
  def exists(self):
  - """Whether the designed file or directory exists.
  + """Whether the designated file or directory exists.
  >>> p = Path('/tmp/.drake.foo')
  >>> p.touch()
  @@ -766,11 +766,11 @@ class Path:
  @property
  def executable(self):
  - """Whether the designed file is executable by the user."""
  + """Whether the designated file is executable by the user."""
  return _OS.access(str(self), _OS.X_OK)
  def is_file(self):
  - """Whether the designed file exists and is a regular file.
  + """Whether the designated file exists and is a regular file.
  >>> p = Path('/tmp/.drake.foo')
  >>> p.touch()
  @@ -825,7 +825,7 @@ class Path:
  volume = self.__volume)
  def touch(self):
  - """Create the designed file if it does not exists.
  + """Create the designated file if it does not exists.
  Creates the parent directories if needed first.
  @@ -853,7 +853,7 @@ class Path:
  pass
  def mkpath(self):
  - """Create the designed directory.
  + """Create the designated directory.
  Creates the parent directories if needed first.
  @@ -1911,7 +1911,9 @@ class Builder:
  """Run a shell command.
  pretty -- A pretty version for output.
  - command -- The command.
  + cmd -- The command. Either a string, a list (which denotes
  + a single command with multiple argvs), or a tuple,
  + in which case each item is run as a distinct command).
  throw -- Whether to throw on error rather than returning False.
  cut_stderr -- Whether to send stderr to /dev/null.
  