defer関数の引数名をGo命名規約に準拠するよう修正 (#232)

* defer関数の引数名をGo命名規約に準拠するよう修正

defer関数の引数名を`Body`から`readCloser`に変更:
- Go言語の命名規約に従い、エクスポートされない変数は小文字始まりに統一
- 型を明確に表す`readCloser`に変更
- 対象ファイル: cmd/health_check/main.go, lib/amesh/amesh.go, lib/misskey/bot.go

* readCloser -> body

Author: massongit

cmd/health_check/main.go

@@ -27,8 +27,8 @@ func main() {
 	if err != nil {
 		panic(errors.Wrap(err, "Failed to httpclient.ExecuteHTTPRequest"))
 	}
-	defer func(Body io.ReadCloser) {
-		if closeErr := Body.Close(); closeErr != nil {
+	defer func(body io.ReadCloser) {
+		if closeErr := body.Close(); closeErr != nil {
 			panic(errors.Wrap(closeErr, "Failed to Close"))
 		}
 	}(resp.Body)

lib/amesh/amesh.go

@@ -517,8 +517,8 @@ func downloadTile(ctx context.Context, client *http.Client, tileURL string) (img
 	if err != nil {
 		return nil, errors.Wrap(err, "Failed to ExecuteHTTPRequest")
 	}
-	defer func(Body io.ReadCloser) {
-		if closeErr := Body.Close(); closeErr != nil {
+	defer func(body io.ReadCloser) {
+		if closeErr := body.Close(); closeErr != nil {
 			err = errors.Wrap(closeErr, "Failed to Close")
 		}
 	}(resp.Body)

lib/misskey/bot.go

@@ -70,8 +70,8 @@ func (bot *Bot) CreateNote(ctx context.Context, params *CreateNoteParams) (err e
 	if err != nil {
 		return errors.Wrap(err, "Failed to apiRequest")
 	}
-	defer func(Body io.ReadCloser) {
-		if closeErr := Body.Close(); closeErr != nil {
+	defer func(body io.ReadCloser) {
+		if closeErr := body.Close(); closeErr != nil {
 			err = errors.Wrap(closeErr, "Failed to Close")
 		}
 	}(resp.Body)
@@ -125,8 +125,8 @@ func (bot *Bot) UploadFile(ctx context.Context, reader io.Reader, fileName strin
 	if err != nil {
 		return nil, errors.Wrap(err, "Failed to executeHTTPRequest")
 	}
-	defer func(Body io.ReadCloser) {
-		if closeErr := Body.Close(); closeErr != nil {
+	defer func(body io.ReadCloser) {
+		if closeErr := body.Close(); closeErr != nil {
 			err = errors.Wrap(closeErr, "Failed to Close")
 		}
 	}(resp.Body)
@@ -151,8 +151,8 @@ func (bot *Bot) AddReaction(ctx context.Context, noteID, reaction string) (err e
 	if err != nil {
 		return errors.Wrap(err, "Failed to apiRequest")
 	}
-	defer func(Body io.ReadCloser) {
-		if closeErr := Body.Close(); closeErr != nil {
+	defer func(body io.ReadCloser) {
+		if closeErr := body.Close(); closeErr != nil {
 			err = errors.Wrap(closeErr, "Failed to Close")
 		}
 	}(resp.Body)