RecurLoopShell:env_leave
Restores the variable's previous value, or unsets it if previously absent, then frees the guard. Accepts null.
Signature
Shell:env_leave(Shell:EnvGuard*) -> voidRestores the variable's previous value, or unsets it if previously absent, then frees the guard. Accepts null.
Shell:env_leave(Shell:EnvGuard*) -> void