As with list_users, list_vhosts can sometimes return a value that
doesn't contain a '\t' character. This appears to be the case if the
server has no vhosts, for example.
The same fix was applied to the rabbitmq_users module here:
fafb89cde5
* New generator inventory plugin
Allows construction of hosts and groups through cartesian
product of various group combinations
* Add generator plugin documentation
* adding possibility to specify resource group for referred virtual network
* fixed sanity issues
* removed trailing whitespace
* added test
* fixed documentation
* try to fix unstable test
* Tidied up the description of virtual_network_resource_group
* adding possibility of disabling public ip address
* fixed indent
* fixed whitespace
* fixed mistake
* try to create test with vm without public ip address
* try to fix test
* another attempt for test
* fixing test
* create vm with no ip with different name and delete it immediately
* a few additional fixes
* another attempt to pass test
* must be deleted
* simplified no ip test
* reorganised tests
* Wrapped choice in C()
* fixed issue when public ip address should not be created
* adding test for public ip address
* fixed samples
* another fix to sample formatting
* fixed test
* fix test
* fixed test
* another attempt to fix test
* maybe it works now
* still wrong
* improved check per customer request
* removed stupid semicolon
* updated test to match main scenario
* changed ip configurations to list
* another attempt
* msi
* add env and param
* add msi in default
* add azure_rm
* add document
* subscription param
* if not enabled msi
* remove the msi in default mode since the infinite loop will block if not enabled msi
* lint
* lint
* Update azure_rm_common.py
* fix
* catch exc and make error message more friendly
* lint
* Minor docs changes to the msi source option
* added set_env_proxy function for setting proxy environment
Added set_env_proxy function, that set system http(s)_proxy
environment for fetching RPM if proxy settings set in yum.conf file
that fix Issue - #18979
* fix automatic field numbering specification
* changed if statement in setting http_proxy environment
* Change set_env_proxy function to function with decorator
That decorator set system proxy environment from yum.conf and revert
back to system configuration after fetching RPM
* Minor fix
- rename variable schem to scheme
- change 'in' to 'startswith'
* change decorator set_env_proxy to decorating through contextmanager
- added import contextmanager from contextlib
- set_env_proxy now decorating through contextmanager
- fix http/https setting environment principle
