typo: unkown->unknown

Originally committed as revision 8274 to svn://svn.ffmpeg.org/ffmpeg/trunk

ffmpeg.c

@@ -3465,7 +3465,7 @@ static void opt_video_bsf(const char *arg)
     AVBitStreamFilterContext **bsfp;
 
     if(!bsfc){
-        fprintf(stderr, "Unkown bitstream filter %s\n", arg);
+        fprintf(stderr, "Unknown bitstream filter %s\n", arg);
         exit(1);
     }
 
@@ -3483,7 +3483,7 @@ static void opt_audio_bsf(const char *arg)
     AVBitStreamFilterContext **bsfp;
 
     if(!bsfc){
-        fprintf(stderr, "Unkown bitstream filter %s\n", arg);
+        fprintf(stderr, "Unknown bitstream filter %s\n", arg);
         exit(1);
     }
 

libavcodec/flicvideo.c

@@ -115,7 +115,7 @@ static int flic_decode_init(AVCodecContext *avctx)
                   return -1;
                   break;
         default :
-                  av_log(avctx, AV_LOG_ERROR, "Unkown FLC/FLX depth of %d Bpp is unsupported.\n",depth);
+                  av_log(avctx, AV_LOG_ERROR, "Unknown FLC/FLX depth of %d Bpp is unsupported.\n",depth);
                   return -1;
     }
 

libavformat/vocdec.c

@@ -51,7 +51,7 @@ static int voc_read_header(AVFormatContext *s, AVFormatParameters *ap)
     url_fskip(pb, 20);
     header_size = get_le16(pb) - 22;
     if (header_size != 4) {
-        av_log(s, AV_LOG_ERROR, "unkown header size: %d\n", header_size);
+        av_log(s, AV_LOG_ERROR, "unknown header size: %d\n", header_size);
         return AVERROR_NOTSUPP;
     }
     url_fskip(pb, header_size);