The get_system_release_packages function can never be called without a
variant, so it makes no sense to check for that condition.
Signed-off-by: Lubomír Sedlář <lsedlar@redhat.com>
* add comments explaining what's going on
* break too long lines
* simplify the logic where possible
* use with statement to work with files
* remove commented out and unused code
* introduce helpers to reduce code duplication
Signed-off-by: Lubomír Sedlář <lsedlar@redhat.com>
