Commitde8e46f

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Suppress bogus statistics when pgbench failed to complete any transactions.

Code added in 9.4 would attempt to divide by zero in such cases.Noted while testing fix for missing-pclose problem.

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Original file line number	Diff line number	Diff line change
`@@ -2541,6 +2541,10 @@ printResults(int ttype, int64 normal_xacts, int nclients,`
`2541`	`2541`	`normal_xacts);`
`2542`	`2542`	`}`
`2543`	`2543`
	`2544`	`+/* Remaining stats are nonsensical if we failed to execute any xacts */`
	`2545`	`+if (normal_xacts <=0)`
	`2546`	`+return;`
	`2547`	`+`
`2544`	`2548`	`if (throttle_delay&&latency_limit)`
`2545`	`2549`	`printf("number of transactions skipped: "INT64_FORMAT" (%.3f %%)\n",`
`2546`	`2550`	`throttle_latency_skipped,`

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