Stop openconnect_set_proxy_auth() mangling its input.
Stop openconnect_set_proxy_auth() mangling its input.

Even though it immediately frees it. We're going to change that...

Signed-off-by: David Woodhouse <b460d66aaf00c296a3db1c1d9eeafc081d5f7d70@intel.com>

don-johnny/openconnect,atyndall/openconnect,atyndall/openconnect,atyndall/openconnect,matlockx/openconnect,cernekee/openconnect,mveplus/openconnect-client,lins05/openconnect,don-johnny/openconnect,brandt/openconnect,atyndall/openconnect,matlockx/openconnect,lins05/openconnect,nmav/openconnect-mine,liiir1985/openconnect,liiir1985/openconnect,matlockx/openconnect,brandt/openconnect,mveplus/openconnect-client,mveplus/openconnect-client,cernekee/openconnect,mveplus/openconnect-client,mtmiller/openconnect,brandt/openconnect,lins05/openconnect,brandt/openconnect,nmav/openconnect-mine,mtmiller/openconnect,nmav/openconnect-mine,nmav/openconnect-mine,cernekee/openconnect,lins05/openconnect,cernekee/openconnect,don-johnny/openconnect,don-johnny/openconnect,mtmiller/openconnect,matlockx/openconnect,liiir1985/openconnect,liiir1985/openconnect,mtmiller/openconnect