hacluster uses the command "crm configure get-property <CMD>" to obtain
a property of the cluster, although "get-property" has been deprecated
in favor of "get_property", since crmsh-4.2.1 a warning is printed to
stdout[0] breaking the parsing.
# crm configure get-property maintenance-mode 2>/dev/null
WARNING: This command 'get-property' is deprecated, please use 'get_property'
INFO: "get-property" is accepted as "get_property"
true
[0] 86282af8e5
Change-Id: Id0ee9ab1873d14dcd1c960001cdeb8318f599ef5
Closes-Bug: #2008704
8446b38347