quotearg_char     991 maint/gnulib/lib/quotearg.c   return quotearg_char (arg, ':');
quotearg_char     391 maint/gnulib/lib/quotearg.h char *quotearg_char (char const *arg, char ch);
quotearg_char     251 maint/gnulib/tests/test-quotearg-simple.c   char *p = *len == SIZE_MAX ? quotearg_char (str, '"')