btrfs-progs: inspect: set return value of error case

In case of open_file_or_dir() failed, ret is not set to right value,
and the function will return unwanted value(ret of sprintf).

Signed-off-by: Zhao Lei <zhaolei@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.com>

cmds-inspect.c

@@ -243,6 +243,7 @@ static int cmd_inspect_logical_resolve(int argc, char **argv)
 				if (path_fd < 0) {
 					fprintf(stderr, "ERROR: can't access "
 						"'%s'\n", full_path);
+					ret = -ENOENT;
 					goto out;
 				}
 			}