Use --requests-per-connection

tools/load_tester.cpp

@@ -415,7 +415,7 @@ void parse_args(int argc, char *argv[]) {
       {"port", required_argument, 0, 'p'},
       {"unix-socket", required_argument, 0, 'u'},
       {"concurrency", required_argument, 0, 'c'},
-      {"requests-per-conn", required_argument, 0, 'r'},
+      {"requests-per-connection", required_argument, 0, 'r'},
       {"connect-threads", required_argument, 0, 'C'},
       {"network-threads", required_argument, 0, 'N'},
       {"event-batch-size", required_argument, 0, 'E'},