lavc/ffjni: add missing '\n'

libavcodec/ffjni.c

@@ -85,7 +85,7 @@ JNIEnv *ff_jni_get_env(void *log_ctx)
         av_log(log_ctx, AV_LOG_ERROR, "The specified JNI version is not supported\n");
         break;
     default:
-        av_log(log_ctx, AV_LOG_ERROR, "Failed to get the JNI environment attached to this thread");
+        av_log(log_ctx, AV_LOG_ERROR, "Failed to get the JNI environment attached to this thread\n");
         break;
     }