Fix lint and format code in adapter dir

adapter/utils/captcha/captcha.go

@@ -69,9 +69,7 @@ import (
 	beecontext "github.com/beego/beego/v2/server/web/context"
 )
 
-var (
-	defaultChars = []byte{0, 1, 2, 3, 4, 5, 6, 7, 8, 9}
-)
+var defaultChars = []byte{0, 1, 2, 3, 4, 5, 6, 7, 8, 9}
 
 const (
 	// default captcha attributes

adapter/utils/debug_test.go

@@ -28,8 +28,8 @@ func TestPrint(t *testing.T) {
 }
 
 func TestPrintPoint(t *testing.T) {
-	var v1 = new(mytype)
-	var v2 = new(mytype)
+	v1 := new(mytype)
+	v2 := new(mytype)
 
 	v1.prev = nil
 	v1.next = v2

adapter/utils/slice.go

@@ -19,6 +19,7 @@ import (
 )
 
 type reducetype func(interface{}) interface{}
+
 type filtertype func(interface{}) bool
 
 // InSlice checks given string in string slice or not.