Added some code to handle -Oego,opt,asopt and the like.

By default, optimizers can be excluded by giving them a negative
priority in the description files. This is currently done for
the global optimizer

util/ack/main.c

@@ -175,6 +175,8 @@ vieuwargs(argc,argv) char **argv ; {
 			hide=YES ;
 			break ;
 	   case 'O':    Optflag++ ;
+			Optlist= &argp[2] ;
+			eaten=1 ;
 			break ;
 	   case 'v':    if ( argp[2] ) {
 				v_flag += atoi(&argp[2]) ;