Documentation/admin-guide: xfs: drop doubled word

Drop the doubled word "for".
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: linux-doc@vger.kernel.org
Cc: Darrick J. Wong <darrick.wong@oracle.com>
Cc: linux-xfs@vger.kernel.org
Link: https://lore.kernel.org/r/20200704032020.21923-14-rdunlap@infradead.orgSigned-off-by: Jonathan Corbet <corbet@lwn.net>

Documentation/admin-guide/xfs.rst

@@ -133,7 +133,7 @@ When mounting an XFS filesystem, the following options are accepted.
 	logbsize must be an integer multiple of the log
 	stripe unit configured at **mkfs(8)** time.
 
-	The default value for for version 1 logs is 32768, while the
+	The default value for version 1 logs is 32768, while the
 	default value for version 2 logs is MAX(32768, log_sunit).
 
   logdev=device and rtdev=device