Fix admin role check

auth.go

@@ -189,8 +189,8 @@ func idFromUsername(username string) string {
 
 func isAdmin(m *discordgo.Member) bool {
 	log.LogDebug("Checking %+v for %+v", m.Roles, config.AdminRole)
-	for role := range m.Roles {
+	for _, role := range m.Roles {
-		if fmt.Sprintf("%+v", role) == config.AdminRole {
+		if role == config.AdminRole {
 			return true
 		} else {
 			log.LogDebug("%+v != %+v", role, config.AdminRole)