pgsql: Add missing gettext triggers

Add missing gettext triggers

Commit d6607016c7 moved all the jsonapi.c error messages into
token_error(). This needs to be added to the various nls.mk files
that use this. Since that makes token_error() effectively a globally
known symbol, the name seems a bit too general, so rename to
json_token_error() for more clarity.

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/3ddbac368c205fce1f293de1fe60c1b479800746

Modified Files
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src/backend/nls.mk | 2 ++
src/bin/pg_combinebackup/nls.mk | 2 ++
src/bin/pg_verifybackup/nls.mk | 2 ++
src/common/jsonapi.c | 24 ++++++++++++------------
4 files changed, 18 insertions(+), 12 deletions(-)