rb_warnI         12114 ext/ripper/ripper.c 		    rb_warnI("invalid character syntax; use ?\\%c", c2);
rb_warnI         6714 ext/ripper/ripper.y 		    rb_warnI("invalid character syntax; use ?\\%c", c2);
rb_warnI         12046 parse.c        		    rb_warnI("invalid character syntax; use ?\\%c", c2);
rb_warnI         6714 parse.y        		    rb_warnI("invalid character syntax; use ?\\%c", c2);