Description of problem: running /usr/sbin/ipa_webgui doesn't provide any output. If things are broken it may need to be run manually to diagnose problems. It needs to provide usage when passed --help and -h usefull options would include things like -p (port to come up on) -V (Verberos) -v (version)
This is fixed in the patch committed in bug 430011 Not a dupe per-se but one patch fixed both.
Verified with 20080407.el5ipa