Add install_repoquery parameter to the yum module
Update docstring for rhn details
Fix up docstring type and extra info about list
Fix typo
Install yum-utils by default
remove install_repoquery docstring
add failsafe comment for install_repoquery
Merge pull request #6208 from jctanner/yum-rhn-fix

Fixes #6205 Add install_repoquery parameter to the yum module