set version to 1.0.3

@@ -526,7 +526,7 @@ void load_codec_param()
 int main(int argc, char * argv[])
 {
 	if (argc < 2) {
-		printf("   merge_av 1.0.2\n");
+		printf("   merge_av 1.0.3\n");
 		printf("   run ffmpeg to merge audio and video files according to the record info file,\nusage:");
 		printf("\n   %s record_info_filename [-p] [-k]", argv[0]);
 		printf("\n   -p :only print the command,don't run ffmpeg");