tcpbench: Don't use floating precision while printing PPS in UDP mode.

[Christiano F. Haesbaert]

Moin, 

I think it doesn't make sense for PPS, also, the rounding is wrong so we always 
get .000

This makes the output go from:
Elapsed:       11685 Mbps:      63.602 Peak Mbps:      63.602 Rx PPS:   5401.000

to:
Elapsed:       15000 Mbps:    1227.177 Peak Mbps:    1245.347 Tx PPS:  104210

ok ?

Index: tcpbench.c
===================================================================
RCS file: /cvs/src/usr.bin/tcpbench/tcpbench.c,v
retrieving revision 1.30
diff -d -u -p -w -r1.30 tcpbench.c
--- tcpbench.c  26 Jan 2012 17:53:53 -0000      1.30
+++ tcpbench.c  29 Jan 2012 02:47:38 -0000
@@ -571,8 +571,8 @@ static void
 udp_process_slice(int fd, short event, void *v_sc)
 {
        struct statctx *sc = v_sc;
-       unsigned long long total_elapsed, since_last;
-       long double slice_mbps, pps;
+       unsigned long long total_elapsed, since_last, pps;
+       long double slice_mbps;
        struct timeval t_cur, t_diff;
 
        if (clock_gettime_tv(CLOCK_MONOTONIC, &t_cur) == -1)
@@ -586,7 +586,7 @@ udp_process_slice(int fd, short event, v
        pps = (sc->udp_slice_pkts * 1000) / since_last;
        if (slice_mbps > mainstats.peak_mbps)
                mainstats.peak_mbps = slice_mbps;
-       printf("Elapsed: %11llu Mbps: %11.3Lf Peak Mbps: %11.3Lf %s PPS: 
%10.3Lf\n",
+       printf("Elapsed: %11llu Mbps: %11.3Lf Peak Mbps: %11.3Lf %s PPS: 
%7llu\n",
            total_elapsed, slice_mbps, mainstats.peak_mbps,
            ptb->sflag ? "Rx" : "Tx", pps);