regularize format of source file headers, no code changes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

util-linux/volume_id/f2fs.c

@@ -5,9 +5,6 @@
  *
  * Licensed under GPLv2, see file LICENSE in this source tree.
  */
-
-//kbuild:lib-$(CONFIG_FEATURE_VOLUMEID_F2FS) += f2fs.o
-
 //config:config FEATURE_VOLUMEID_F2FS
 //config:	bool "f2fs filesystem"
 //config:	default y
@@ -18,6 +15,8 @@
 //config:	known issues of the older log structured file systems, such as high
 //config:	cleaning overhead.
 
+//kbuild:lib-$(CONFIG_FEATURE_VOLUMEID_F2FS) += f2fs.o
+
 #include "volume_id_internal.h"
 
 #define F2FS_MAGIC		0xF2F52010	// F2FS Magic Number