libmspub: fix the quoting

Change-Id: I448d7ec788ed93c71d67ea6785ec8c463a936971
gbuild: fix typo in Module clean rule

regression from 04dead1c6b9fd8ea24b27d2c5824ae889a2fac66

Change-Id: I623ec25a0666cd3cac1d4f6371e6460a25faa6c4
download.lst: export ODFGEN_TARBALL to unbreak "odfgen.clean"

Change-Id: I7b7138904cde5da862524096732173281b1a71f2