message: style: fix space issues
diff: -# Copyright (C) 2009-2016, Quentin "mefyl" Hocquet
  +# Copyright (C) 2009-2017, Quentin "mefyl" Hocquet
  #
  # This software is provided "as is" without warranty of any kind,
  # either expressed or implied, including but not limited to the
  @@ -1282,7 +1282,7 @@ class BaseNode(object, metaclass = _BaseNodeType):
  return self.__name
  def dot(self, marks):
  - """Print a dot representation of this nodes build graph."""
  + """Print a dot representation of this node build graph."""
  if self in marks:
  return True
  marks[self] = None
  @@ -2323,9 +2323,9 @@ class ShellCommand(Builder):
  stdout = None):
  """Create a builder that runs command.
  - sources -- List of source nodes, or source source node if
  + sources -- List of source nodes, or source node if
  there's only one.
  - targets -- List of target nodes, or target target node if
  + targets -- List of target nodes, or target node if
  there's only one.
  command -- The shell command to run.
  pretty -- Optional pretty printing.
  @@ -2729,7 +2729,6 @@ def _raw_include(path, *args, **kwargs):
  return res
  def dot(node, *filters):
  -
  # FIXME: coro!
  node.build()
  marks = {}
  