top: limit task cpu % based on total number of threads

Everyone has either accepted this potential distortion
or patched top to eliminate it. Now, the time has come
to regain some consistency when calculating that %CPU.

We'll now limit such values to: 100.0 * total threads.
And, it took way too long to address this little flaw.

(now that we know a '.' + 2 spaces is squeezed to one)
(everything's perfectly justified, but it's just luck)

Reference(s):
http://www.freelists.org/post/procps/top-regression-reports
http://www.freelists.org/post/procps/top-regression-reports,1

Signed-off-by: Jim Warner <james.warner@comcast.net>

top/top.c

@@ -4631,6 +4631,9 @@ static const char *task_show (const WIN_t *q, const proc_t *p) {
             break;
          case P_CPU:
          {  float u = (float)p->pcpu * Frame_etscale;
+            /* process can't use more %cpu than number of threads it has
+             ( thanks Jaromir Capik <jcapik@redhat.com> ) */
+            if (u > 100.0 * p->nlwp) u = 100.0 * p->nlwp;
             if (u > Cpu_pmax) u = Cpu_pmax;
             cp = scale_pcnt(u, W, Jn);
          }