David Wittman ef0f852041 Fix multiple issues with alternatives module ... - Changes are no longer erroneously reported on RHEL (#12) - Adding new link groups on Debian works again. - This was broken in a previous commit by assuming the OS was RHEL if `update-alternatives --query <name>` had a return code of 2 - Prefer `--display` over `--query` for determining available alternatives - --display is more distro-agnostic and simplifies the code - Fix missing `msg=` in `fail_json` call when `link` is missing - Document that `link` is required on RHEL-based distros Tested on Ubuntu 12.04+ and CentOS 6/7		2016-12-08 11:32:29 -05:00
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ansible	Fix multiple issues with alternatives module	2016-12-08 11:32:29 -05:00