avoid shadowing

Author: taran-p

ldap/ldap.go

@@ -91,16 +91,16 @@ func (l *Config) Clone() (cloned Config) {
 }
 
 func (l *Config) connect(ldapAddr string) (ldapConn *ldap.Conn, err error) {
-	tls := l.TLS
-	if tls != nil && tls.ServerName == "" {
+	tlsConfig := l.TLS
+	if tlsConfig != nil && tlsConfig.ServerName == "" {
 		// Set the server name to the LDAP server address.
 		colonPos := strings.LastIndex(ldapAddr, ":")
 		if colonPos == -1 {
 			colonPos = len(ldapAddr)
 		}
 		host := ldapAddr[:colonPos]
-		tls = l.TLS.Clone()
-		tls.ServerName = host
+		tlsConfig = l.TLS.Clone()
+		tlsConfig.ServerName = host
 	}
 
 	if l.ServerInsecure {
@@ -109,14 +109,14 @@ func (l *Config) connect(ldapAddr string) (ldapConn *ldap.Conn, err error) {
 		if l.ServerStartTLS {
 			ldapConn, err = ldap.Dial("tcp", ldapAddr)
 		} else {
-			ldapConn, err = ldap.DialTLS("tcp", ldapAddr, tls)
+			ldapConn, err = ldap.DialTLS("tcp", ldapAddr, tlsConfig)
 		}
 	}
 
 	if ldapConn != nil {
 		ldapConn.SetTimeout(30 * time.Second) // Change default timeout to 30 seconds.
 		if l.ServerStartTLS {
-			err = ldapConn.StartTLS(tls)
+			err = ldapConn.StartTLS(tlsConfig)
 		}
 	}