Revert 1a5e4fd8 for postproc. This broke the code

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

libpostproc/postprocess.c

@@ -86,7 +86,6 @@ try to unroll inner for(x=0 ... loop to avoid these damn if(x ... checks
 //#define DEBUG_BRIGHTNESS
 #include "postprocess.h"
 #include "postprocess_internal.h"
-#include "libavutil/avstring.h"
 
 unsigned postproc_version(void)
 {
@@ -767,7 +766,8 @@ pp_mode *pp_get_mode_by_name_and_quality(const char *name, int quality)
     ppMode->maxClippedThreshold= 0.01;
     ppMode->error=0;
 
-    av_strlcpy(temp, name, GET_MODE_BUFFER_SIZE);
+#undef strncpy
+    strncpy(temp, name, GET_MODE_BUFFER_SIZE);
 
     av_log(NULL, AV_LOG_DEBUG, "pp: %s\n", name);