* Catch exception raised from invalid verify_options
This fails the state gracefully in these cases.
Refs: 6b97161293 (r63577507)
* Raise an exception when package verification fails
* Catch failed package verification commands
Also, since pkg.verify is run separately on each targeted package, don't
add errors for each failure, just add one error to what we report.
* Update rpm test_verify test to reflect change from cmd.run to cmd.run_all