concierge-permaudit: add rule for nginx htpasswd

src/concierge-permaudit

@@ -36,6 +36,7 @@ disRules = list()
 disRules.append(('/etc/apache2/sites-available/*', 'SSLCertificateKeyFile\s+(\S+)'))
 disRules.append(('/etc/dovecot/conf.d/10-ssl.conf', 'ssl_key\s*=\s*<(\S+)'))
 disRules.append(('/etc/nginx/sites-available/*', 'ssl_certificate_key\s+([^;]+);'))
+disRules.append(('/etc/nginx/sites-available/*', 'auth_basic_user_file\s+?"([^;]+)?"'))
 disRules.append(('/etc/postfix/main.cf', 'smtpd_tls_key_file\s*=\s*(\S+)'))
 
 readPatterns = [