Use global applet_name instead of local versions.

coreutils/rmdir.c

@@ -40,7 +40,7 @@ extern int rmdir_main(int argc, char **argv)
 
 	while (--argc > 0) {
 		if (rmdir(*(++argv)) == -1) {
-			fprintf(stderr, "%s: %s\n", *argv, strerror(errno));
+			fprintf(stderr, "%s: %s\n", applet_name, strerror(errno));
 			exit(FALSE);
 		}
 	}

coreutils/test.c

@@ -183,7 +183,7 @@ test_main(int argc, char** argv)
 {
 	int	res;
 
-	if (strcmp(argv[0], "[") == 0) {
+	if (strcmp(applet_name, "[") == 0) {
 		if (strcmp(argv[--argc], "]"))
 			fatalError("missing ]\n");
 		argv[argc] = NULL;

coreutils/whoami.c

@@ -43,7 +43,7 @@ extern int whoami_main(int argc, char **argv)
 		puts(user);
 		exit(TRUE);
 	}
-	fprintf(stderr, "%s: cannot find username for UID %u\n", argv[0],
+	fprintf(stderr, "%s: cannot find username for UID %u\n", applet_name,
 			(unsigned) uid);
 	return(FALSE);
 }