Only leave the FindFileFirstA() notes from 20dfca81, reverting
the incorrect setlocale() notes. On Windows, Gettext's <libintl.h>
overrides setlocale() with libintl_setlocale() wrapper. I hadn't
noticed this, and thus my conclusions were wrong.
Fixes: 20dfca8171dad4c64785ac61d5b68972c444877b
(cherry picked from commit e607329a615759f1519016595dd38df7c89208f2)