quickpkg: Fix incorrect BINPKG_COMPRESS_FLAGS split.

Cherry-picked from upstream (https://gitweb.gentoo.org/proj/portage.git/commit/?id=158ff662921150011fdd9929e8e7d5f4be946a5d)

BUG=b:341734852
TEST=build portage and run

Bug: https://bugs.gentoo.org/857933
Closes: https://github.com/gentoo/portage/pull/857
Change-Id: Id366703a943fdd5528003bc38afc232a5b34ad6e
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/portage_tool/+/5552490
Commit-Queue: Jack Rosenthal <jrosenth@chromium.org>
Tested-by: Matt Stark <msta@google.com>
Auto-Submit: Matt Stark <msta@google.com>
Reviewed-by: Jack Rosenthal <jrosenth@chromium.org>
1 file changed