fix for missing logging in nnrpd

[Katsuhiro Kondou]

In article <20020725222045.GA12388 at panix.com>,
	Ben Rosengart <br+inn at panix.com> wrote;

} This is Aidan Cully's fix for a problem in nnrpd: when the authenticator
} program is missing, nothing is logged.  I don't know which version
} this is against, but getting it to apply to any version should be
} trivial.

Just fixed.  And L_WARNING is replaced with L_ERROR.
Thanks.
-- 
Katsuhiro Kondou