Fix error message when too many command line arguments
Fix error message when too many command line arguments

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

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