Fully define all variables used
Fully define all variables used

Travis-CI is operating with STRICT_VARIABLES enabled (which is good) so
we need to explicitely define any variables we're using instead of just
implicitely relying on the variable not being defined if we don't need
it.

Signed-off-by: Andrew Grimberg <1f872228929e751eea07667e68fbb1655199bd12@linuxfoundation.org>

tykeal/puppet-jjb