Stop using IPC::Cmd and String::ShellQuote, since quoting (and

Stop using IPC::Cmd and String::ShellQuote, since quoting (and
having to quote, and the possible use of the shell) sucks. Stop
passing args to cvs_runcvs() as an arrayref, since that also sucks
(and was a sop to IPC::Cmd). Instead, use Joey's construction for
temporarily redirecting stderr to /dev/null. Much much simpler and
better. Works on my laptop with bozohttpd, now to test on the NetBSD
wiki.