Log Message:
-----------
Use LOG instead of DEBUG2 for logging invalid cancel requests. (That is,
cancel requests with an incorrect key, or with a non-existent PID). Per
recent discussion on -hackers.
Modified Files:
--------------
pgsql/src/backend/postmaster:
postmaster.c (r1.543 -> r1.544)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/postmaster/postmaster.c?r1=1.543&r2=1.544)