[gnome-builder] build: use full checksum

[Christian Hergert <chergert src gnome org>]

commit c8f728d930cf9e7ebb67ee7d5ccb5a5aef496c57
Author: Christian Hergert <chergert redhat com>
Date:   Wed Sep 22 11:48:20 2021 -0700

    build: use full checksum

 data/appdata/meson.build | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/data/appdata/meson.build b/data/appdata/meson.build
index ad8339caa..cbe6e95b5 100644
--- a/data/appdata/meson.build
+++ b/data/appdata/meson.build
@@ -1,6 +1,6 @@
 # Appdata file.
 appdata_file_untranslated = vcs_tag(
-  command: ['git', 'rev-parse', '--short', 'HEAD'],
+  command: ['git', 'rev-parse', 'HEAD'],
   input: 'org.gnome.Builder.appdata.xml.in.in',
   output: 'org.gnome.Builder.appdata.xml.in',
 )