Declares a list of global variables.
Once a variable has been declared as global
it refers to the global kvirc instance for the scope of the script.
Global variables are shared between scripts and keep their
value until they are explicitly unset or kvirc quits.
Please note that the commands typed in from the commandline
already assume that all the variables are global: this command
has no effect in that case.
The versions of KVIrc prior to 3.0.0 recognized global variables
by the initial uppercase letter. This method is incoherent with the
rest of the language and is deprecated (even if it is still supported
for backward compatibility).
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