Pass verbosity level in vpnc-script environment as LOG_LEVEL
Based on discussion in vpnc-scripts#32 (comment 811874252).
Corresponding improvements to the Windows script (vpnc-script-win.js) added in vpnc-scripts!45 (merged).
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Remove the 'verbose' global variable
We've long had this as a member of struct openconnect_info; no need to keep a global for the CLI application.
Edited by Daniel Lenski