[polari] polari: Destroy GjsContext before exit

[Florian Müllner <fmuellner src gnome org>]

commit 8557024377ba9fb025ac802f0a76a1d26509e317
Author: Florian Müllner <fmuellner gnome org>
Date:   Mon Dec 12 00:19:30 2016 +0100

    polari: Destroy GjsContext before exit
    
    ... as required by recent GJS.

 src/polari.c |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)
---
diff --git a/src/polari.c b/src/polari.c
index 5ed30e8..2bc6e82 100644
--- a/src/polari.c
+++ b/src/polari.c
@@ -28,6 +28,8 @@ main (int argc, char *argv[])
       g_message ("Failed to define ARGV: %s", error->message);
       g_error_free (error);
 
+      g_object_unref (context);
+
       return 1;
     }
 
@@ -36,8 +38,12 @@ main (int argc, char *argv[])
       g_message ("Execution of start() threw exception: %s", error->message);
       g_error_free (error);
 
+      g_object_unref (context);
+
       return status;
     }
 
+  g_object_unref (context);
+
   return 0;
 }