[gnome-calculator] Update bugzilla references to gitlab

[Robert Roth <robertroth src gnome org>]

commit 7afe5059820483b4d30098b057dffe5d1b01ee43
Author: Robert Roth <robert roth off gmail com>
Date:   Mon May 28 14:50:08 2018 +0300

    Update bugzilla references to gitlab

 data/org.gnome.Calculator.appdata.xml.in | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/data/org.gnome.Calculator.appdata.xml.in b/data/org.gnome.Calculator.appdata.xml.in
index 0c6318a4..f3a9ffe6 100644
--- a/data/org.gnome.Calculator.appdata.xml.in
+++ b/data/org.gnome.Calculator.appdata.xml.in
@@ -60,7 +60,7 @@
     <kudo>UserDocs</kudo>
   </kudos>
   <developer_name>The GNOME Project</developer_name>
-  <url type="bugtracker">https://bugzilla.gnome.org/enter_bug.cgi?product=gnome-calculator</url>
+  <url type="bugtracker">https://gitlab.gnome.org/GNOME/gnome-system-monitor/issues</url>
   <url type="donation">http://www.gnome.org/friends/</url>
   <url type="help">https://help.gnome.org/users/gnome-calculator/stable/</url>
   <translation type="gettext">gnome-calculator</translation>