fix spelling mistake in ubifs.h

[liu.song11 at zte.com.cn]

maybe there is a spelling mistake.fix it or ignore it seems both ok, lol.
---
 fs/ubifs/ubifs.h |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/fs/ubifs/ubifs.h b/fs/ubifs/ubifs.h
index a06e8d7..fe53006 100644
--- a/fs/ubifs/ubifs.h
+++ b/fs/ubifs/ubifs.h
@@ -157,7 +157,7 @@
 #define WORST_COMPR_FACTOR 2

 /*
- * How much memory is needed for a buffer where we comress a data node.
+ * How much memory is needed for a buffer where we compress a data node.
  */
 #define COMPRESSED_DATA_NODE_BUF_SZ \
 	(UBIFS_DATA_NODE_SZ + UBIFS_BLOCK_SIZE * WORST_COMPR_FACTOR)
--

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