FIX: staged changes to tests code not applying to devref.

Author: Paliak

spec/buildDiff.sh

@@ -26,7 +26,7 @@ then
 	rm -rf $CACHEDIR/*.build
 
     # Keep new changes to tests related files
-    git diff --no-color /tmp/workdir/.busted /tmp/workdir/src/HeadlessWrapper.lua /tmp/workdir/spec/ > /tmp/patch && \
+    git diff --no-color origin/dev -- /tmp/workdir/.busted /tmp/workdir/src/HeadlessWrapper.lua /tmp/workdir/spec/ > /tmp/patch && \
     git reset --hard origin/dev && git clean -fd && git apply --allow-empty /tmp/patch && \
     cat /tmp/workdir/spec/builds.txt | dos2unix | parallel --will-cite --ungroup --pipe -N50 'LINKSBATCH="$(mktemp){#}"; cat > $LINKSBATCH; BUILDLINKS="$LINKSBATCH" BUILDCACHEPREFIX="$CACHEDIR" busted --lua=luajit -r generate' && \
     BUILDCACHEPREFIX="$CACHEDIR" busted --lua=luajit -r generate && date > "$CACHEDIR/$devref" && echo "[+] Build cache computed for $devref (devref)" || exit $?