Remove PATH overriding code in ikiwiki script that was present to make perl taint...

[ikiwiki] / doc / bugs / svn+ssh_commit_fail.mdwn

If I try to do a web commit, to a svn+ssh repo, it fails with
"Host key verification failed."
I think that the setuid isn't fully taking; it should be running as me,
but commit log shows www-data. So maybe it has the wrong username? Or
EUID/Real UID screwage. [[bugs/done]]