Log Message:
-----------
Add lock file contents printout to "can't happen" case to help
investigate buildfarm failures.
Modified Files:
--------------
pgsql/src/backend/utils/init:
miscinit.c (r1.141 -> r1.142)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/init/miscinit.c.diff?r1=1.141&r2=1.142)