Fix #endif comments.

Originally committed as revision 6709 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavcodec/bitstream.h

@@ -200,7 +200,7 @@ unaligned(16)
 unaligned(32)
 unaligned(64)
 #undef unaligned
-#endif //!ARCH_X86
+#endif /* defined(ARCH_X86) || defined(ARCH_X86_64) */
 
 #ifndef ALT_BITSTREAM_WRITER
 static inline void put_bits(PutBitContext *s, int n, unsigned int value)

libpostproc/postprocess.c

@@ -594,7 +594,7 @@ static always_inline void do_a_deblock_C(uint8_t *src, int step, int stride, PPC
 #if (defined (HAVE_3DNOW) && !defined (HAVE_MMX2)) || defined (RUNTIME_CPUDETECT)
 #define COMPILE_3DNOW
 #endif
-#endif //ARCH_X86
+#endif /* defined(ARCH_X86) || defined(ARCH_X86_64) */
 
 #undef HAVE_MMX
 #undef HAVE_MMX2