REG_EESCAPE      2396 lib/regcomp.c        *err = REG_EESCAPE;
REG_EESCAPE       832 src/regex-emacs.c    [REG_EESCAPE] = "Trailing backslash",
REG_EESCAPE      2177 src/regex-emacs.c 	  if (p == pend) FREE_STACK_RETURN (REG_EESCAPE);
REG_EESCAPE      2372 src/regex-emacs.c 		  FREE_STACK_RETURN (REG_EESCAPE);