[quadrapassel] snap: Fix up vapidir to fix a build failure

[Ken VanDine <kvandine src gnome org>]

commit 21036ce3cfcfd5e5ad1aa4d307d0c92b4dcfe655
Author: Ken VanDine <ken vandine org>
Date:   Fri Aug 23 18:50:39 2019 +0300

    snap: Fix up vapidir to fix a build failure

 snap/snapcraft.yaml | 2 ++
 1 file changed, 2 insertions(+)
---
diff --git a/snap/snapcraft.yaml b/snap/snapcraft.yaml
index d4759b1..4e37bfe 100644
--- a/snap/snapcraft.yaml
+++ b/snap/snapcraft.yaml
@@ -127,6 +127,8 @@ parts:
     organize:
       snap/quadrapassel/current/usr: usr
     override-build: |
+      sed -i.bak -e "s|'--vapidir'|'--vapidir', '$SNAPCRAFT_STAGE/usr/share/vala/vapi', '--vapidir'|g" 
src/meson.build
+
       sed -i.bak -e 's|=org.gnome.Quadrapassel$|=${SNAP}/meta/gui/org.gnome.Quadrapassel.png|g' 
data/org.gnome.Quadrapassel.desktop.in
       snapcraftctl build
       mkdir -p $SNAPCRAFT_PART_INSTALL/meta/gui/