quotearg_char     122 gnulib-tests/test-quotearg.h   char *p = *len == SIZE_MAX ? quotearg_char (str, '"')
quotearg_char     848 lib/quotearg.c   return quotearg_char (arg, ':');
quotearg_char     352 lib/quotearg.h char *quotearg_char (char const *arg, char ch);