- new bb_opt_complementally syntax, use [-:?] only - 'free' chars

- new bb_getopt_ulflags features: check max and min args, convert first argv to options special for ar and tar applets
- use bb_default_error_retval for env applet

findutils/grep.c

@@ -264,7 +264,7 @@ extern int grep_main(int argc, char **argv)
 	char *slines_before;
 	char *Copt;
 
-	bb_opt_complementally = "H-h:e*:f*:C-AB";
+	bb_opt_complementally = "H-h:e::f::C-AB";
 	opt = bb_getopt_ulflags(argc, argv,
 		GREP_OPTS GREP_OPT_CONTEXT OPT_EGREP,
 		&pattern_head, &fopt,
@@ -299,7 +299,7 @@ extern int grep_main(int argc, char **argv)
 	}
 #else
 	/* with auto sanity checks */
-	bb_opt_complementally = "H-h:e*:f*:c-n:q-n:l-n";
+	bb_opt_complementally = "H-h:e::f::c-n:q-n:l-n";
 	opt = bb_getopt_ulflags(argc, argv, GREP_OPTS OPT_EGREP,
 		&pattern_head, &fopt);
 #endif