xfs_admin: don't add '=1' when building repair command line for -O

xfs_admin: don't add '=1' when building repair command line for -O

Geert Hendrickx reported an inconsistency between the xfs_admin manpage
and its behavior -- the documentation says that users must provide the
status explicitly, but the script injects '=1' anyway.  While this seems
to work with the glibc getsubopt, it's a bit ugly and isn't consistent
with the docs.

So, get rid of that extra two bytes.

Reported-by: Geert Hendrickx <geert@hendrickx.be>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Eric Sandeen <sandeen@sandeen.net>