xfs: rename nname to newname

Burn a couple of extra source code bytes to make it clear what this does.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
diff --git a/libxfs/xfs_log_format.h b/libxfs/xfs_log_format.h
index 3203578..8b16ae2 100644
--- a/libxfs/xfs_log_format.h
+++ b/libxfs/xfs_log_format.h
@@ -117,7 +117,7 @@
 #define XLOG_REG_TYPE_ATTRD_FORMAT	28
 #define XLOG_REG_TYPE_ATTR_NAME	29
 #define XLOG_REG_TYPE_ATTR_VALUE	30
-#define XLOG_REG_TYPE_ATTR_NNAME	31
+#define XLOG_REG_TYPE_ATTR_NEWNAME	31
 #define XLOG_REG_TYPE_MAX		31