Use versioncmp, otherwise with puppet 4 (as on Fedora 22) you get "A
String is not comparable to a non String".
We also inverted the versioncmp check for the version variable, the
main reason for this was to reduce complexity of the versioncmp code.
Additionally, defining 0 to be the latest version didn't really make
sense. So, changing it to use 'latest' means better code readability.
Change-Id: Ic8b0fd2a19cbb90e1d57e3025a3d2513ebada2e2
Signed-off-by: Paul Belanger <pabelanger@redhat.com>
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