[gtk] release script: Fix doc tarball generation

[Matthias Clasen <matthiasc src gnome org>]

commit 31069d5e960294b2e4b04c527e7b1b6b86327ccf
Author: Matthias Clasen <mclasen redhat com>
Date:   Tue Sep 29 15:07:13 2020 -0400

    release script: Fix doc tarball generation
    
    Strip one level from the directories.

 make-release.sh | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/make-release.sh b/make-release.sh
index 50f8aed7d8..fee4685fd1 100755
--- a/make-release.sh
+++ b/make-release.sh
@@ -19,9 +19,9 @@ meson dist -C${release_build_dir} --include-subprojects || exit
 meson configure -Dgtk_doc=true ${release_build_dir} || exit
 ninja -C${release_build_dir} gdk4-doc gsk4-doc gtk4-doc || exit
 
-tar cf ${release_build_dir}/meson-dist/gdk-docs-${version}.tar.xz ${release_build_dir}/docs/reference/gdk
-tar cf ${release_build_dir}/meson-dist/gsk-docs-${version}.tar.xz ${release_build_dir}/docs/reference/gsk
-tar cf ${release_build_dir}/meson-dist/gtk-docs-${version}.tar.xz ${release_build_dir}/docs/reference/gtk
+tar -C ${release_build_dir} cf meson-dist/gdk-docs-${version}.tar.xz docs/reference/gdk
+tar -C ${release_build_dir} cf meson-dist/gsk-docs-${version}.tar.xz docs/reference/gsk
+tar -C ${release_build_dir} cf meson-dist/gtk-docs-${version}.tar.xz docs/reference/gtk
 
 echo -e "\n\nGTK ${version} release on branch ${branch} in ./${release_build_dir}/:\n"