REG_ERANGE       2660 lib/regcomp.c      return REG_ERANGE;
REG_ERANGE       2687 lib/regcomp.c      return REG_ERANGE;
REG_ERANGE       2888 lib/regcomp.c      return REG_ERANGE;
REG_ERANGE       2901 lib/regcomp.c      return REG_ERANGE;
REG_ERANGE       3324 lib/regcomp.c  	return REG_ERANGE;
REG_ERANGE        838 src/regex-emacs.c    [REG_ERANGE] = "Invalid range end",