Fixup some warnings

archival/bunzip2.c

@@ -33,6 +33,8 @@
 int bunzip2_main(int argc, char **argv)
 {
 	char *compressed_name;
+	/* Note: Ignore the warning about save_name being used uninitialized.
+	 * That is not the case, but gcc has trouble working that out... */
 	char *save_name;
 	unsigned long opt;
 	int status;