Description of problem:

rpmdeplint raises this exception when checking conflicts and if found some conflicts with the package.

Version-Release number of selected component (if applicable):
rpmdeplint-1.4-8.fc30.noarch

How reproducible:
100%

Steps to Reproduce:
1.run rpmdeplint check-conflicts with rpms that have a valid conflict.


Actual results:
It raises the exception
Traceback (most recent call last):
  File "/usr/bin/rpmdeplint", line 11, in <module>
    load_entry_point('rpmdeplint==1.4', 'console_scripts', 'rpmdeplint')()
  File "/usr/lib/python3.7/site-packages/rpmdeplint/cli.py", line 232, in main
    return args.func(args)
  File "/usr/lib/python3.7/site-packages/rpmdeplint/cli.py", line 87, in cmd_check_conflicts
    conflicts = analyzer.find_conflicts()
  File "/usr/lib/python3.7/site-packages/rpmdeplint/__init__.py", line 355, in find_conflicts
    if not self._packages_can_be_installed_together(package, conflicting):
  File "/usr/lib/python3.7/site-packages/rpmdeplint/__init__.py", line 266, in _packages_can_be_installed_together
    if g.problems and 'conflicts' in g.problems[0]:
AttributeError: 'Goal' object has no attribute 'problems'

Expected results:
Report the conflict it found.