[SRU PTUVWXY][PATCH 0/2] debian getabis script fixes

[Kamal Mostafa]

Fixes for debian/misc/scripts/getabis

BugLink: http://bugs.launchpad.net/bugs/1584890

The debian.master/scripts/misc/getabis script always emits these false
warnings/errors under normal use:

[ All >= Precise ] 
WARNING: inconsistant compiler versions detected
    ... because the compiler version check code is wrong.

[ All >= Trusty ]
fatal: Not a git repository (or any of the parent directories): .git
    ... because the script is normally run on a remote host via
    maint-startnewrelease.

Patches for both issues to follow.

 -Kamal