[gupnp-tools] build: Fix building against gtksourceview-4

[Jens Georg <jensgeorg src gnome org>]

commit 1d470c9d2abd85085d488b476df24eee60ca42ac
Author: Jens Georg <mail jensge org>
Date:   Sat Oct 27 20:23:53 2018 +0200

    build: Fix building against gtksourceview-4

 meson.build | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/meson.build b/meson.build
index 3152f4d..696a315 100644
--- a/meson.build
+++ b/meson.build
@@ -14,7 +14,7 @@ libxml = dependency('libxml-2.0', version: '>= 2.0')
 gobject = dependency('gobject-2.0', version: '>= 2.24')
 
 # Check for gtksourceview (used for XML syntax highlighting)
-gtksourceview = dependency('gtksourceview-4.0', required: false)
+gtksourceview = dependency('gtksourceview-4', required: false)
 if not gtksourceview.found()
     gtksourceview = dependency('gtksourceview-3.0', version: '>= 3.2.0', required: false)
 endif