[easytag] Update HACKING and SOURCES for Gitlab

[David King <davidk src gnome org>]

commit fdf2b10095d48a5fe8f9f60c38706423d768bc0c
Author: David King <amigadave amigadave com>
Date:   Wed Feb 13 10:40:24 2019 +0000

    Update HACKING and SOURCES for Gitlab

 HACKING | 11 ++++-------
 SOURCES |  2 +-
 2 files changed, 5 insertions(+), 8 deletions(-)
---
diff --git a/HACKING b/HACKING
index 4638651..40bfd5e 100644
--- a/HACKING
+++ b/HACKING
@@ -4,23 +4,20 @@ Hacking on EasyTAG
 Contributing
 ------------
 
-If you have a suggestion or found a bug, please either file a bug:
+If you have a suggestion or found a bug, please either file an issue:
 
-https://bugzilla.gnome.org/enter_bug.cgi?product=easytag
+https://gitlab.gnome.org/GNOME/easytag/issues/new
 
 or bring it up on the mailing list:
 
 easytag-list gnome org
 
-Patches are best filed on Bugzilla, but a pull request is also fine. For
-patches, please:
+Patches are best filed as merge requests in Gitlab. For commits, please:
 
 * keep the first line of the commit messages at 50 characters or less
 * do not add a prefix to the commit message, for example "build:"
-* provide patches created with "git format-patch"
 * add a link to the bug report or mailing list archives where the patch was
-  discussed, for example "bug 987654" for GNOME Bugzilla or a URL for other
-  services
+  discussed, for example a URL for the issue
 
 Coding Style
 ------------
diff --git a/SOURCES b/SOURCES
index 04b3400..fdf6b15 100644
--- a/SOURCES
+++ b/SOURCES
@@ -1,4 +1,4 @@
-Source: https://git.gnome.org/browse/easytag/tag/?id=easytag-2.4.3
+Source: https://gitlab.gnome.org/GNOME/easytag/tags/easytag-2.4.3
 
 This binary was generated with GCC/MinGW on Fedora 25.