hfsplus: fix an artifact in ioctl flag checking

Fix a flag checking artifact in hfsplus_ioctl_getflags() routine
found while doing clean-up against assignments inside `if's.

Signed-off-by: Anton Salikhmetov <alexo@tuxera.com>
Signed-off-by: Christoph Hellwig <hch@tuxera.com>

fs/hfsplus/ioctl.c

diff --git a/fs/hfsplus/ioctl.c b/fs/hfsplus/ioctl.c
index f5a7224..508ce66 100644
--- a/fs/hfsplus/ioctl.c
+++ b/fs/hfsplus/ioctl.c
@@ -28,7 +28,7 @@
 
 	if (inode->i_flags & S_IMMUTABLE)
 		flags |= FS_IMMUTABLE_FL;
-	if (inode->i_flags |= S_APPEND)
+	if (inode->i_flags & S_APPEND)
 		flags |= FS_APPEND_FL;
 	if (hip->userflags & HFSPLUS_FLG_NODUMP)
 		flags |= FS_NODUMP_FL;