xfs_quota: don't exit on fs_table_insert_project_path failure

If "project -p" fails in fs_table_insert_project_path, it
calls exit() today which is quite unfriendly. Return an error
and return to the command prompt as expected.

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
[sandeen: move fprintf to caller per request]
Signed-off-by: Eric Sandeen <sandeen@sandeen.net>

3 files changed