write(): It's been generally agreed on the i18n-sig that the docstring

marker should be output as a #, flag, e.g. "#, docstring".

Tools/i18n/pygettext.py

@@ -342,7 +342,7 @@ class TokenEater:
                 # comment stating so.  This is to aid translators who may wish
                 # to skip translating some unimportant docstrings.
                 if reduce(operator.__add__, v.values()):
-                    print >> fp, '#. docstring'
+                    print >> fp, '#, docstring'
                 # k is the message string, v is a dictionary-set of (filename,
                 # lineno) tuples.  We want to sort the entries in v first by
                 # file name and then by line number.