Source fixup_stuff...

...so it can pick up config variables from local.conf

Change-Id: I0991f59881f16c72789e3b0342c26a2419ba0878
diff --git a/stack.sh b/stack.sh
index ce20fbe..7f44825 100755
--- a/stack.sh
+++ b/stack.sh
@@ -662,7 +662,7 @@
 fi
 
 # Do the ugly hacks for broken packages and distros
-$TOP_DIR/tools/fixup_stuff.sh
+source $TOP_DIR/tools/fixup_stuff.sh
 
 
 # Extras Pre-install