pgsql-server: Fix slightly-wrong syntax error messages from bootstrap

Log Message:
-----------
Fix slightly-wrong syntax error messages from bootstrap parser, as per
report from Tom Cook.

Modified Files:
--------------
pgsql-server/src/backend/bootstrap:
bootscanner.l (r1.35 -> r1.36)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/backend/bootstrap/bootscanner.l.diff?r1=1.35&r2=1.36)