Put options help in alphabetical order

contrib/pgbench/pgbench.c

@@ -341,12 +341,12 @@ usage(const char *progname)
 		   "               define variable for use by custom script\n"
 		   "  -f FILENAME  read transaction script from FILENAME\n"
 		   "  -j NUM       number of threads (default: 1)\n"
-		   "  -r           report average latency per command\n"
 		   "  -l           write transaction times to log file\n"
 		   "  -M {simple|extended|prepared}\n"
 		   "               protocol for submitting queries to server (default: simple)\n"
 		   "  -n           do not run VACUUM before tests\n"
 		   "  -N           do not update tables \"pgbench_tellers\" and \"pgbench_branches\"\n"
+		   "  -r           report average latency per command\n"
 		   "  -s NUM       report this scale factor in output\n"
 		   "  -S           perform SELECT-only transactions\n"
 	 "  -t NUM       number of transactions each client runs (default: 10)\n"