Use && in qvm-move-to-vm

&& is safer in case qvm-*copy*-to-vm is ever changed to call 'set +e'.

qubes-rpc/qvm-move-to-vm

@@ -20,6 +20,5 @@
 #
 #
 
-set -e
-. qvm-copy-to-vm "$@"
+. qvm-copy-to-vm "$@" &&
 rm -rf -- "$@"