Bug#270054: after removing xprint, annoying message is printed by the init script

[Adam Heath <doogie@brainfood.com>]

package: xprt
version: 0.0.9.final.001-2
severity: minor

After I removed(but didn't purge) xprt, upon startup, I get this:

==
gradall:/home.local/adam# /etc/init.d/xprint start
Starting Xprint servers: Xprt.
/etc/init.d/xprint: ## ERROR: Can't find "/usr/X11R6/bin/Xprt".
==

While this does mean it behaves as policy mandates, this message is annoying d
uring bootup.  Any odd messages at bootup are cause for alarm, and this
message falls under that designation.

Additionally, the init script exits with an error in this situation, which is
wrong.  Policy 9.3.2 states the script should not fail obscurely, and this
error is obscure.