fix golint issues (#459)

core/search/tree.go

@@ -143,11 +143,11 @@ func add(nd *node, route string, item interface{}) error {
 				}
 
 				return ErrInvalidState
-			} else {
-				child := newNode(nil)
-				children[token] = child
-				return add(child, route[i+1:], item)
 			}
+
+			child := newNode(nil)
+			children[token] = child
+			return add(child, route[i+1:], item)
 		}
 	}
 

tools/goctl/model/sql/test/orm.go

@@ -217,18 +217,18 @@ func unmarshalRows(v interface{}, scanner rowsScanner, strict bool) error {
 
 					if err := scanner.Scan(values...); err != nil {
 						return err
-					} else {
-						appendFn(value)
 					}
+
+					appendFn(value)
 				}
 			default:
 				return ErrUnsupportedValueType
 			}
 
 			return nil
-		} else {
-			return ErrNotSettable
 		}
+
+		return ErrNotSettable
 	default:
 		return ErrUnsupportedValueType
 	}