Fix linter warnings

Signed-off-by: Anton Litvinov <[email protected]>

Author: Zensey

services/wireguard/endpoint.go

@@ -34,6 +34,5 @@ type ConnectionEndpoint interface {
 	Config() (ServiceConfig, error)
 	InterfaceName() string
 	Stop() error
-	
 	Diag() error
 }

services/wireguard/service/service_test.go

@@ -153,8 +153,8 @@ func (mce *mockConnectionEndpoint) ConfigureRoutes(_ net.IP) error       { retur
 func (mce *mockConnectionEndpoint) PeerStats() (wgcfg.Stats, error) {
 	return wgcfg.Stats{LastHandshake: time.Now()}, nil
 }
-func (mce *mockConnectionEndpoint) Diag() bool {
-	return true
+func (mce *mockConnectionEndpoint) Diag() error {
+	return nil
 }
 
 func newManagerStub(pub, out, country string) *Manager {

tequilapi/endpoints/connection-diag.go

@@ -25,7 +25,6 @@ import (
 	"github.com/gin-gonic/gin"
 	"github.com/pkg/errors"
 	"github.com/rs/zerolog/log"
-
 	"gorm.io/driver/postgres"
 	"gorm.io/gorm"
 	"gvisor.dev/gvisor/pkg/sync"
@@ -331,7 +330,7 @@ func (proposalDB) TableName() string {
 	return "node"
 }
 
-// DiagBatch is used to start a given providers check (batch mode)
+// DiagBatch2 is used to start a check of providers from a given country or all countries
 func (ce *ConnectionDiagEndpoint) DiagBatch2(c *gin.Context) {
 
 	hermes, err := ce.addressProvider.GetActiveHermes(config.GetInt64(config.FlagChainID))