lavc/libkvazaar: indent the code

indent the code to follow FFmpeg's coding style
Signed-off-by: Jun Zhao <mypopydev@gmail.com>

libavcodec/libkvazaar.c

@@ -233,8 +233,7 @@ static int libkvazaar_encode(AVCodecContext *avctx,
         av_log(avctx, AV_LOG_ERROR, "Failed to encode frame.\n");
         retval = AVERROR_INVALIDDATA;
         goto done;
-    }
-    else
+    } else
         retval = 0; /* kvazaar returns 1 on success */
 
     if (data_out) {