[issue768] grml-lock: does not work on console if xlock is missing

[Michael Prokop]

New submission from Michael Prokop <mika at grml.org>:

The check4progs needs to be improved: if grml-lock is executed on the console 
and xlock isn't installed it doesn't start up.

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messages: 2671
nosy: mika
priority: bug
status: unread
title: grml-lock: does not work on console if xlock is missing

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GRML issue tracker <bts at bts.grml.org>
<http://bts.grml.org/grml/issue768>
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