Simpify detection of no options.
diff --git a/coreutils/rm.c b/coreutils/rm.c
index a3542aa..768e3ca 100644
--- a/coreutils/rm.c
+++ b/coreutils/rm.c
@@ -112,7 +112,7 @@
 		}
 	}
 	
-	if ((argc-optind) < 1 && forceFlag == FALSE) {
+	if (argc == optind && forceFlag == FALSE) {
 		show_usage();
 	}
 #ifdef BB_FEATURE_RM_INTERACTIVE