gmvault: Fix start script

pkgs/tools/networking/gmvault/default.nix

@@ -19,6 +19,13 @@ buildPythonPackage rec {
     pythonPackages.argparse
   ];
 
+  startScript = ./gmvault.py;
+
+  patchPhase = ''
+    cat ${startScript} > etc/scripts/gmvault
+    chmod +x etc/scripts/gmvault
+  '';
+
   meta = {
     description = "Gmvault Gmail Backup - Backup and restore your gmail account at will.";
     homepage = "http://gmvault.org";

pkgs/tools/networking/gmvault/gmvault.py

@@ -0,0 +1,4 @@
+#!/usr/bin/env python
+
+import gmv.gmv_cmd as runner
+runner.bootstrap_run()