Lint: Fix some minor linter errors

Signed-off-by: Knut Ahlers <knut@ahlers.me>

main.go

@@ -144,11 +144,12 @@ func main() {
 		case syscall.SIGHUP:
 			if yamlSource, err = loadConfiguration(); err != nil {
 				log.WithError(err).Error("Unable to reload configuration")
-			} else {
+				continue
+			}
+
 			if err = initializeModules(yamlSource); err != nil {
 				log.WithError(err).Error("Unable to initialize modules")
 			}
-			}
 
 		default:
 			log.Fatalf("Received unexpected signal: %v", sig)
@@ -167,7 +168,7 @@ func handleAuthRequest(res http.ResponseWriter, r *http.Request) {
 	switch err {
 	case plugins.ErrNoValidUserFound:
 		// No valid user found, check whether special anonymous "user" has access
-		// Username is set to 0x0 character to prevent accidential whitelist-match
+		// Username is set to 0x0 character to prevent accidental whitelist-match
 		if mainCfg.ACL.HasAccess(string(0x0), nil, r) {
 			mainCfg.AuditLog.Log(auditEventValidate, r, map[string]string{"result": "anonymous access granted"}) // #nosec G104 - This is only logging
 			res.WriteHeader(http.StatusOK)

plugins/auth/google/auth.go

@@ -216,7 +216,7 @@ func (a *AuthGoogleOAuth) getUserFromToken(ctx context.Context, token *oauth2.To
 	httpClient := conf.Client(ctx, token)
 	client, err := v2.NewService(ctx, option.WithHTTPClient(httpClient))
 	if err != nil {
-		return "", errors.Wrap(err, "Unable to instanciate OAuth2 API service")
+		return "", errors.Wrap(err, "Unable to instantiate OAuth2 API service")
 	}
 
 	tok, err := client.Tokeninfo().Context(ctx).Do()

plugins/mfa/totp/mfa.go

@@ -93,7 +93,7 @@ func (m MFATOTP) exec(c plugins.MFAConfig) (string, error) {
 	}
 
 	if n := len(secret) % 8; n != 0 {
-		secret = secret + strings.Repeat("=", 8-n)
+		secret += strings.Repeat("=", 8-n)
 	}
 
 	return totp.GenerateCodeCustom(strings.ToUpper(secret), time.Now(), generatorOpts)