Tvheadend

In case of an error during execution (outlen == 0) the arguments of spawn_and_give_stdout are double freed (resulting in tvheadend to crash)

Following patch fixes it:

diff --git a/src/epggrab/module.c b/src/epggrab/module.c
index 5b25816..a806c29
--- a/src/epggrab/module.c
+++ b/src/epggrab/module.c
@@ -302,8 +302,6 @@ char *epggrab_module_grab_spawn ( void *m )
   /* Grab */
   outlen = spawn_and_give_stdout(argv[0], (char **)argv, NULL, &rd, NULL, 1);

-  spawn_free_args(argv);
-
   if (outlen < 0)
     goto error;

@@ -311,6 +309,7 @@ char *epggrab_module_grab_spawn ( void *m )
   if (outlen < 1)
     goto error;

+  spawn_free_args(argv);
   close(rd);

   return outbuf;