jfs: removed a prohibited space after opening parenthesis

Fixed a coding style issue.
Signed-off-by: NNan Jia <jiananmail@gmail.com>
Signed-off-by: NDave Kleikamp <dave.kleikamp@oracle.com>

fs/jfs/file.c

@@ -76,7 +76,7 @@ static int jfs_open(struct inode *inode, struct file *file)
 		if (ji->active_ag == -1) {
 			struct jfs_sb_info *jfs_sb = JFS_SBI(inode->i_sb);
 			ji->active_ag = BLKTOAG(addressPXD(&ji->ixpxd), jfs_sb);
-			atomic_inc( &jfs_sb->bmap->db_active[ji->active_ag]);
+			atomic_inc(&jfs_sb->bmap->db_active[ji->active_ag]);
 		}
 		spin_unlock_irq(&ji->ag_lock);
 	}