fix up O_SYNC comments

Proper Posix O_SYNC handling only made it into 2.6.33, not 2.6.32.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/include/asm-generic/fcntl.h b/include/asm-generic/fcntl.h
index 681ddf3..fcd268c 100644
--- a/include/asm-generic/fcntl.h
+++ b/include/asm-generic/fcntl.h
@@ -51,7 +51,7 @@
 #endif
 
 /*
- * Before Linux 2.6.32 only O_DSYNC semantics were implemented, but using
+ * Before Linux 2.6.33 only O_DSYNC semantics were implemented, but using
  * the O_SYNC flag.  We continue to use the existing numerical value
  * for O_DSYNC semantics now, but using the correct symbolic name for it.
  * This new value is used to request true Posix O_SYNC semantics.  It is