Eli Schwartz authored Nov 04, 2018 and Allan McRae committed Nov 27, 2018

If a user has a makepkg.conf policy to enable debug builds, but a
PKGBUILD has disabled buildflags, we would unset the *FLAGS but then
later append the debug *FLAGS anyway, which would result in some *FLAGS
being used, against the wishes of the PKGBUILD author.

Signed-off-by: Eli Schwartz <eschwartz@archlinux.org>
Signed-off-by: Allan McRae <allan@archlinux.org>