pgsql: (Apologies for fat-fingering cvs commit command...) Should have

Log Message:
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(Apologies for fat-fingering cvs commit command...) Should have read:
Remove unportable use of tfind/tsearch in favor of bsearch. Fix up
random number generator to use random() not rand() and to actually honor
its min/max arguments properly. That wasn't so important before, but
with exposure of capability to ask for general ranges, it will be.

Modified Files:
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pgsql/contrib/pgbench:
pgbench.c (r1.41 -> r1.42)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/contrib/pgbench/pgbench.c.diff?r1=1.41&r2=1.42)