vendor dependencies, make some changes to how input is done

vendor/github.com/ebitengine/gomobile/internal/mobileinit/mobileinit_ios.go

@@ -0,0 +1,41 @@
+// Copyright 2015 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package mobileinit
+
+import (
+	"io"
+	"log"
+	"os"
+	"unsafe"
+)
+
+/*
+#include <stdlib.h>
+#include <os/log.h>
+
+os_log_t create_os_log() {
+	return os_log_create("org.golang.mobile", "os_log");
+}
+
+void os_log_wrap(os_log_t log, const char *str) {
+	os_log(log, "%s", str);
+}
+*/
+import "C"
+
+type osWriter struct {
+	w C.os_log_t
+}
+
+func (o osWriter) Write(p []byte) (n int, err error) {
+	cstr := C.CString(string(p))
+	C.os_log_wrap(o.w, cstr)
+	C.free(unsafe.Pointer(cstr))
+	return len(p), nil
+}
+
+func init() {
+	log.SetOutput(io.MultiWriter(os.Stderr, osWriter{C.create_os_log()}))
+}