[library-web] be explicit about including gtksourceview

[Frederic Peters <fpeters src gnome org>]

commit 90389414bb9ef288301bb38d4d84d591e9ca4f0b
Author: Frédéric Péters <fpeters 0d be>
Date:   Sun Apr 15 18:31:40 2018 +0200

    be explicit about including gtksourceview

 data/extra-tarballs |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/data/extra-tarballs b/data/extra-tarballs
index 0d62490..9911785 100644
--- a/data/extra-tarballs
+++ b/data/extra-tarballs
@@ -80,6 +80,9 @@ gnome://libgsf
 gnome://easytag?min=2.2
 gnome://NetworkManager?min=1.0
 
+# libraries, as the release team stopped publishing modulesets
+gnome://gtksourceview?min=3.28
+
 # applications, no longer managed by the release team
 gnome://devhelp?min=3.28