Merge remote-tracking branch 'origin/pr/605'

* origin/pr/605:
  Implementing -h & --help for qvm-console-dispvm

qvm-tools/qvm-console-dispvm

@@ -2,12 +2,20 @@
 set -eu
 print_usage() {
 cat >&2 << USAGE
-Usage: $0 [--autostart] [--] vmname
+Usage: $0 [--help] [--autostart] [--] vmname
+
 Connects to VM console throught DispVM using the qubes.ShowInTerminal RPC service.
-With --autostart, start the VM first.
+
+  --help, -h      show this help message and exit
+  --autostart     start the VM first.
 USAGE
 }
 
+if [ "$1" == "--help" ] || [ "$1" == "-h" ]; then
+    print_usage
+    exit 0
+fi
+
 do_start=false
 if [[ $# -ge 2 ]] && [[ "$1" = '--autostart' ]]; then
     do_start=: