pgsql: meson: Use a better error message in an impossible case

meson: Use a better error message in an impossible case

Meson validates 'choice' options for us, so technically this case is
impossible. A better error message helps people reading the code
understand what is going on in that branch.

Author: Tristan Partin <tristan@neon.tech>
Discussion: /messages/by-id/CSPIJVUDZFKX.3KHMOAVGF94RV@c3po

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/99e57663518b0eaf8fa69d20d0e796321bc8e558

Modified Files
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meson.build | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)