Prefer lsb_release tool to /etc/lsb-release data #873
Merged
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There isn't and has never been mention of /etc/lsb-release in the
official LSB universe. The "correct" way to discover LSB data is with
lsb_release, so this uses that facility first, before falling back to
oddball support.
Without this change, some upgraded boxen will have the wrong results
because an outdated /etc/lsb-release may have been left behind with
different contents than what would come from the lsb_release util.
See:
http://refspecs.linuxfoundation.org/LSB_5.0.0/LSB-Core-generic/LSB-Core-generic/lsbrelease.html
http://refspecs.linuxfoundation.org/LSB_5.0.0/LSB-Core-generic/LSB-Core-generic/etc.html