Fix invalid escape sequences

Author: asottile

sass.py

@@ -265,7 +265,7 @@ def _check_no_remaining_kwargs(func, kwargs):
 
 
 def compile(**kwargs):
-    """There are three modes of parameters :func:`compile()` can take:
+    r"""There are three modes of parameters :func:`compile()` can take:
     ``string``, ``filename``, and ``dirname``.
 
     The ``string`` parameter is the most basic way to compile Sass.

sassc.py

@@ -1,5 +1,5 @@
 #!/usr/bin/env python
-""":mod:`sassc` --- SassC compliant command line interface
+r""":mod:`sassc` --- SassC compliant command line interface
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 This provides SassC_ compliant CLI executable named :program:`sassc`: