ellipsis_match():  Changed treatment of start- and end-of-string exact matches to be symmetric.  This makes the algorithm easier to understand.
ellipsis_match():  Changed treatment of start- and end-of-string exact
matches to be symmetric.  This makes the algorithm easier to understand.

sk-/python2.7-type-annotator,sk-/python2.7-type-annotator,sk-/python2.7-type-annotator