bpo-44865: Fix yet one missing translations in argparse (GH-27668)

Author: jdetrey

Lib/argparse.py

@@ -223,7 +223,8 @@ def format_help(self):
             # add the heading if the section was non-empty
             if self.heading is not SUPPRESS and self.heading is not None:
                 current_indent = self.formatter._current_indent
-                heading = '%*s%s:\n' % (current_indent, '', self.heading)
+                heading_text = _('%(heading)s:') % dict(heading=self.heading)
+                heading = '%*s%s\n' % (current_indent, '', heading_text)
             else:
                 heading = ''
 

Misc/NEWS.d/next/Library/2021-08-24-20-47-37.bpo-44865.c3BhZS.rst

@@ -0,0 +1 @@
+Add missing call to localization function in :mod:`argparse`.