golint fixed for models/models.go (#284)

models/models.go

@@ -149,7 +149,7 @@ func getEngine() (*xorm.Engine, error) {
 		}
 	case "sqlite3":
 		if !EnableSQLite3 {
-			return nil, errors.New("This binary version does not build support for SQLite3.")
+			return nil, errors.New("this binary version does not build support for SQLite3")
 		}
 		if err := os.MkdirAll(path.Dir(DbCfg.Path), os.ModePerm); err != nil {
 			return nil, fmt.Errorf("Fail to create directories: %v", err)
@@ -157,7 +157,7 @@ func getEngine() (*xorm.Engine, error) {
 		connStr = "file:" + DbCfg.Path + "?cache=shared&mode=rwc"
 	case "tidb":
 		if !EnableTiDB {
-			return nil, errors.New("This binary version does not build support for TiDB.")
+			return nil, errors.New("this binary version does not build support for TiDB")
 		}
 		if err := os.MkdirAll(path.Dir(DbCfg.Path), os.ModePerm); err != nil {
 			return nil, fmt.Errorf("Fail to create directories: %v", err)
@@ -218,7 +218,7 @@ func NewEngine() (err error) {
 	}
 
 	if err = x.StoreEngine("InnoDB").Sync2(tables...); err != nil {
-		return fmt.Errorf("sync database struct error: %v\n", err)
+		return fmt.Errorf("sync database struct error: %v", err)
 	}
 
 	return nil