Fix warnings trivial warnings.

Fix warnings about:
 . Unused variables
 . format mismatch in printf/scanf format string and arguments
 . Missing parenthesis around assignment as truth values
 . Clang warnings anout unknown GCC pragma

commands/remsync/remsync.c

@@ -801,7 +801,7 @@ entry_t *readstate(void)
 	static pathname_t path;
 	static size_t *trunc;
 	static size_t trunc_len;
-	static base_indent;
+	static int base_indent;
 	char *line;
 	char **argv;
 	size_t argc;