Pylint no-else-return refactoring: tenth (and so far last) set of files

[check_mk.git] / .werks / 3234

Title: Make unixcat more robust
Level: 1
Component: core
Class: fix
Compatible: compat
State: unknown
Version: 1.4.0i1
Date: 1456222762

Previously it could happen that unixcat crashed when system resources and/or
limits were low, especially the nproc limit.  Now we emit sensible error
messages and exit with new return codes (5 and 6).