[MM-57743] Enable errcheck linter (#26723)

server/channels/utils/i18n.go

@@ -12,8 +12,8 @@ import (
 	"github.com/mattermost/mattermost/server/v8/channels/utils/fileutils"
 )
 
-// this functions loads translations from filesystem if they are not
-// loaded already and assigns english while loading server config
+// TranslationsPreInit loads translations from filesystem if they are not
+// loaded already and assigns english while loading server config.
 func TranslationsPreInit() error {
 	translationsDir := "i18n"
 	if mattermostPath := os.Getenv("MM_SERVER_PATH"); mattermostPath != "" {