Merge pull request #909 from larsoner/esc

BUG: Fix escape character

Fixes the char warning on nibabel import.

Author: matthew-brett

nibabel/cifti2/cifti2.py

@@ -171,7 +171,7 @@ def _to_xml_element(self):
 
 
 class Cifti2LabelTable(xml.XmlSerializable, MutableMapping):
-    """ CIFTI-2 label table: a sequence of ``Cifti2Label``\s
+    r""" CIFTI-2 label table: a sequence of ``Cifti2Label``\s
 
     * Description - Used by NamedMap when IndicesMapToDataType is
       "CIFTI_INDEX_TYPE_LABELS" in order to associate names and display colors