When using Nagios as the core and a check command that contains single
quotes then the notification would not work. This is because the variables
are enclosed in single quotes in check_mk_templates.cfg. That file
has been changed so that for the check command macros double quotes are
being used. Check_MK itself does never use double quotes in its strings
so this is less likely to cause problems.
The Check_MK Micro Core does not have this problem. Everything works
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