check number of args for btrfs sub snap correctly

Check whether there are the right number of arguments (exatly 2 without
the flag -r) in the subcommand handler for the btrfs subvolume snapshot
command.

Signed-off-by: Andreas Philipp <philipp.andreas@gmail.com>

diff --git a/btrfs_cmds.c b/btrfs_cmds.c
index 7d2fd8c..d099847 100644 (file)
--- a/btrfs_cmds.c
+++ b/btrfs_cmds.c
@@ -372,7 +372,7 @@ int do_clone(int argc, char **argv)
                        return 1;
                }
        }
-       if (argc - optind != 2) {
+       if (argc - optind != 3) {
                fprintf(stderr, "Invalid arguments for subvolume snapshot\n");
                free(argv);
                return 1;