_usage            157 maint/gnulib/lib/argmatch.h   void argmatch_##Name##_usage (FILE *out);                             \
_usage            274 maint/gnulib/lib/argmatch.h   argmatch_##Name##_usage (FILE *out)                                   \
_usage             30 maint/gnulib/lib/long-options.h                          void (*_usage) (int),