Add C comment that '=' is not documented for plpgsql assignment.
Branch------master
Details-------http://git.postgresql.org/pg/commitdiff/1d9a6ae8555da4a7de0046c61264748602ff6086
Modified Files--------------src/pl/plpgsql/src/gram.y | 2 +-1 files changed, 1 insertions(+), 1 deletions(-)
