doxygen: misc consistency cosmetics

libavcodec/g722.c

@@ -26,7 +26,6 @@
 
 /**
  * @file
- *
  * G.722 ADPCM audio codec
  *
  * This G.722 decoder is a bit-exact implementation of the ITU G.722

libavcodec/lzw.h

@@ -24,7 +24,7 @@
  * @file
  * @brief LZW decoding routines
  * @author Fabrice Bellard
- * Modified for use in TIFF by Konstantin Shishkov
+ * modified for use in TIFF by Konstantin Shishkov
  */
 
 #ifndef AVCODEC_LZW_H

libavcodec/msmpeg4.h

@@ -19,10 +19,6 @@
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
-/**
- * @file
- */
-
 #ifndef AVCODEC_MSMPEG4_H
 #define AVCODEC_MSMPEG4_H
 

libavcodec/vaapi_h264.c

@@ -23,9 +23,10 @@
 #include "vaapi_internal.h"
 #include "h264.h"
 
-/** @file
- *  This file implements the glue code between Libav's and VA API's
- *  structures for H.264 decoding.
+/**
+ * @file
+ * This file implements the glue code between Libav's and VA API's
+ * structures for H.264 decoding.
  */
 
 /**