From: Michael Prokop <mika@grml.org>
Date: Fri, 4 Dec 2015 21:50:34 +0000 (+0100)
Subject: Do not fail source retrieval step with apt >=1.1
X-Git-Tag: v0.27.2~1
X-Git-Url: http://git.grml.org/?p=grml-live.git;a=commitdiff_plain;h=5cc5ed05cef0ece968315276fca99e83696b1063;hp=5cc5ed05cef0ece968315276fca99e83696b1063

Do not fail source retrieval step with apt >=1.1

apt >=1.1 tries to drop privileges which fails in our typical setup with:

| W: Can't drop privileges for downloading as file 'zsh_5.2-2.dsc' couldn't be accessed by user '_apt'. - pkgAcquire::Run (13: Permission denied)

Instead let's check for actual errors (starting with "E:"),
and do not fail the build if there warnings only ("W:").
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