pgsql: meson: Change default buildtype to debugoptimized

meson: Change default buildtype to debugoptimized

This matches the Autoconf default (-O2 + debug) better. The previous
default setting "release" used -O3, which resulted in different
compiler warnings. At least for now, we want to avoid such
divergence.

Discussion: /messages/by-id/CAFj8pRBJD_Y-XcqwXSbWS24z+84FFX7ajhCan9ixc_m4bD63sA@mail.gmail.com

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/5aae36dc9c6842e4269b4a713f7ac6583bd8a318

Modified Files
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doc/src/sgml/installation.sgml | 2 +-
meson.build | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)