pgsql: Fix glitch recently introduced in psql tab completion.

Fix glitch recently introduced in psql tab completion.

Over-optimization (by me, looks like :-() broke the case of recognizing
a word boundary just before a quoted identifier.  Reported and diagnosed
by Dean Rasheed.

Branch
------
master

Details
-------
http://git.postgresql.org/pg/commitdiff/a52e6fe7bcf86f7e52d7b1d6f59260cb57b565fa

Modified Files
--------------
src/bin/psql/tab-complete.c |    2 +-
1 files changed, 1 insertions(+), 1 deletions(-)