NTFS: Bump version to 2.1.31.

Signed-off-by: Anton Altaparmakov <anton@tuxera.com>
diff --git a/fs/ntfs/Makefile b/fs/ntfs/Makefile
index 30206b2..36ae529 100644
--- a/fs/ntfs/Makefile
+++ b/fs/ntfs/Makefile
@@ -8,7 +8,7 @@
 
 ntfs-$(CONFIG_NTFS_RW) += bitmap.o lcnalloc.o logfile.o quota.o usnjrnl.o
 
-ccflags-y := -DNTFS_VERSION=\"2.1.30\"
+ccflags-y := -DNTFS_VERSION=\"2.1.31\"
 ccflags-$(CONFIG_NTFS_DEBUG)	+= -DDEBUG
 ccflags-$(CONFIG_NTFS_RW)	+= -DNTFS_RW