This bug is created as a clone of upstream ticket:
https://fedorahosted.org/gss-proxy/ticket/101

When attempting to enable GSS-Proxy & [wiki:Apache], I find that the '''!KrbLocalUserMapping''' configuration option does not work.  This is an imporant part of the configuration options, as not all web applications properly support '''!username''' style usernames, so I need to be able to say '''Require user username''' instead of '''Require user !username''' in some cases. I'm using gssproxy-0.2.3-6.fc19.1.x86_64, httpd-2.4.6-2.fc19.x86_64 and mod_auth_kerb-5.4-24.fc19.x86_64.

{{{
<Location /redacted>
  SSLRequireSSL
  AuthType Kerberos
  AuthName "Login"
  KrbAuthoritative On
  KrbLocalUserMapping On
  KrbServiceName HTTP/example.com
  Require user username
</Location>
}}}

{{{
AH01631: user username\x02s: authorization failure for /redacted
AH01663: access to /redacted failed, reason: user 'username\x02' does not meet 'require'ments for user to be allowed access
AH01631: user username\x02: authorization failure for "/redacted": 
AH01663: access to /redacted failed, reason: user 'username\x02IN1' does not meet 'require'ments for user to be allowed access
AH01631: user username\x02IN1: authorization failure for "/redacted": 
AH01663: access to /redacted failed, reason: user 'username\x7f' does not meet 'require'ments for user to be allowed access
AH01631: user username\x7f: authorization failure for "/redacted": 
AH01663: access to /redacted failed, reason: user 'username\x02' does not meet 'require'ments for user to be allowed access
}}}