xfs: Rudimentary spelling fix

s/sytemcall/syscall/
Signed-off-by: Bhaskar Chowdhury <unixbhaskar@gmail.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>

fs/xfs/xfs_inode.c

@@ -2892,7 +2892,7 @@ xfs_finish_rename(
 /*
  * xfs_cross_rename()
  *
- * responsible for handling RENAME_EXCHANGE flag in renameat2() sytemcall
+ * responsible for handling RENAME_EXCHANGE flag in renameat2() syscall
  */
 STATIC int
 xfs_cross_rename(