Fix more linter warnings

framework/cfgparser/parse.go

@@ -209,6 +209,7 @@ func (ctx *parseContext) parseAsMacro(node *Node) (macroName string, args []stri
 //
 // The lexer's cursor should point to the opening brace
 // name arg0 arg1 {  #< this one
+//
 //	  c0
 //	  c1
 //	}

framework/config/module/check_action.go

@@ -36,14 +36,17 @@ import (
 // returns. It is intended to be used as follows:
 //
 // Add the configuration directive to allow user to specify the action:
+//
 //	cfg.Custom("SOME_action", false, false,
 //		func() (interface{}, error) {
 //			return modconfig.FailAction{Quarantine: true}, nil
 //		}, modconfig.FailActionDirective, &yourModule.SOMEAction)
+//
 // return in func literal is the default value, you might want to adjust it.
 //
 // Call yourModule.SOMEAction.Apply on CheckResult containing only the
 // Reason field:
+//
 //	func (yourModule YourModule) CheckConnection() module.CheckResult {
 //	    return yourModule.SOMEAction.Apply(module.CheckResult{
 //	        Reason: ...,

internal/auth/auth_test.go

@@ -75,7 +75,6 @@ func TestCheckDomainAuth(t *testing.T) {
 	}
 
 	for _, case_ := range cases {
-		case_ := case_
 		t.Run(fmt.Sprintf("%+v", case_), func(t *testing.T) {
 			loginName, allowed := CheckDomainAuth(case_.rawUsername, case_.perDomain, case_.allowedDomains)
 			if case_.loginName != "" && !allowed {

internal/smtpconn/smtpconn.go

@@ -530,7 +530,6 @@ func (c *C) Close() error {
 			c.Log.DebugMsg("QUIT error", "reason", c.wrapClientErr(err, c.serverName))
 		} else if errors.As(err, &netErr) &&
 			(netErr.Timeout() || netErr.Err.Error() == "write: broken pipe" || netErr.Err.Error() == "read: connection reset") {
-
 			// The case for silently closed connections.
 			c.Log.DebugMsg("QUIT error", "reason", c.wrapClientErr(err, c.serverName))
 		} else {

internal/target/remote/remote_test.go

@@ -27,7 +27,6 @@ import (
 	"os"
 	"strconv"
 	"testing"
-	"time"
 
 	"github.com/emersion/go-message/textproto"
 	"github.com/emersion/go-smtp"
@@ -1020,7 +1019,6 @@ func TestMain(m *testing.M) {
 	flag.Parse()
 
 	if *remoteSmtpPort == "random" {
-		rand.Seed(time.Now().UnixNano())
 		*remoteSmtpPort = strconv.Itoa(rand.Intn(65536-10000) + 10000)
 	}
 

internal/target/smtp/smtp_downstream_test.go

@@ -25,7 +25,6 @@ import (
 	"os"
 	"strconv"
 	"testing"
-	"time"
 
 	"github.com/emersion/go-smtp"
 	"github.com/foxcpp/maddy/framework/config"
@@ -344,7 +343,6 @@ func TestMain(m *testing.M) {
 	flag.Parse()
 
 	if *remoteSmtpPort == "random" {
-		rand.Seed(time.Now().UnixNano())
 		*remoteSmtpPort = strconv.Itoa(rand.Intn(65536-10000) + 10000)
 	}