fix typo: display DOMAINNAME\username (\ was missing)
fix typo: display DOMAINNAME\username (\ was missing)

We need to escape the \ to get the correct result
privacyidea/privacyidea,jalr/privacyidea,wheldom01/privacyidea,jh23453/privacyidea,XCage15/privacyidea,privacyidea/privacyidea,wheldom01/privacyidea,wheldom01/privacyidea,XCage15/privacyidea,jalr/privacyidea,jh23453/privacyidea,wheldom01/privacyidea,privacyidea/privacyidea,jh23453/privacyidea,XCage15/privacyidea,privacyidea/privacyidea,XCage15/privacyidea,jalr/privacyidea,jh23453/privacyidea,wheldom01/privacyidea,XCage15/privacyidea,privacyidea/privacyidea,wheldom01/privacyidea,jalr/privacyidea,XCage15/privacyidea,jalr/privacyidea,privacyidea/privacyidea,jh23453/privacyidea,jalr/privacyidea,jh23453/privacyidea