When skipping a test, do not include a spurious space between the exception name and the ":" that separates it from the value.  (Minor cleanup.)
When skipping a test, do not include a spurious space between the exception
name and the ":" that separates it from the value.  (Minor cleanup.)

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