Add missing comment markers to #endif directive.

git-svn-id: file:///var/local/repositories/ffmpeg/trunk@9454 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

libavcodec/h261.h

@@ -48,4 +48,4 @@ typedef struct H261Context{
 
 #define MB_TYPE_H261_FIL 0x800000
 
-#endif AVCODEC_H261_H
+#endif /* AVCODEC_H261_H */