perf(serverHandler): allocate errors slice only if needed

Author: marjune163

src/serverHandler/delete.go

@@ -8,7 +8,7 @@ import (
 )
 
 func (h *handler) deleteItems(authUserName, fsPrefix string, files []string, aliasSubItems []os.FileInfo, r *http.Request) bool {
-	errs := []error{}
+	var errs []error
 
 	for _, inputFilename := range files {
 		if len(inputFilename) == 0 {

src/serverHandler/mkdir.go

@@ -9,7 +9,7 @@ import (
 )
 
 func (h *handler) mkdirs(authUserName, fsPrefix string, files []string, aliasSubItems []os.FileInfo, r *http.Request) bool {
-	errs := []error{}
+	var errs []error
 
 	for _, inputFilename := range files {
 		if len(inputFilename) == 0 {

src/serverHandler/responseData.go

@@ -137,8 +137,6 @@ func (h *handler) mergeAlias(
 	subItems []os.FileInfo,
 	doMerge bool,
 ) (mergedSubItems, aliasSubItems []os.FileInfo, errs []error) {
-	errs = []error{}
-
 	if !doMerge || (item != nil && !item.IsDir()) || len(h.aliases) == 0 {
 		return subItems, nil, errs
 	}

src/serverHandler/upload.go

@@ -54,7 +54,7 @@ func getPartFilePath(part *multipart.Part) string {
 }
 
 func (h *handler) saveUploadFiles(authUserName, fsPrefix string, createDir, overwriteExists bool, aliasSubItems []os.FileInfo, r *http.Request) bool {
-	errs := []error{}
+	var errs []error
 
 	reader, err := r.MultipartReader()
 	if err != nil {