In messages, use singular nouns for -1, like we do for +1.
authorBruce Momjian <bruce@momjian.us>
Tue, 30 Mar 2021 22:34:27 +0000 (18:34 -0400)
committerBruce Momjian <bruce@momjian.us>
Tue, 30 Mar 2021 22:34:27 +0000 (18:34 -0400)
commit5da9868ed983f95cc1cff80dcd81252a513774f8
treea2e80418e7510442018d52fb94087547ab143583
parent6131ffc43ff3d2f566e93f017e56a09e4e717318
In messages, use singular nouns for -1, like we do for +1.

This outputs "-1 year", not "-1 years".

Reported-by: neverov.max@gmail.com
Bug: 16939

Discussion: https://postgr.es/m/16939-cceeb03fb72736ee@postgresql.org
src/backend/utils/adt/datetime.c
src/interfaces/ecpg/pgtypeslib/interval.c
src/interfaces/libpq/fe-print.c
src/test/regress/expected/interval.out