Clean up output

[khuck]

Fix the screen output so that it is columns with headers, instead of this:

LWP (thread) Summary:
LWP 23319: Main,OpenMP - stime:   2.38, utime:  90.69, nv_ctx:     1, ctx:  1537, CPUs allowed: [1,65]
LWP 23324:     ZeroSum - stime:   0.27, utime:   0.18, nv_ctx:     0, ctx:    25, CPUs allowed: [71]
LWP 23332:      OpenMP - stime:   0.33, utime:  98.92, nv_ctx:     0, ctx:     5, CPUs allowed: [1,65]
...

it would be:

LWP (thread) Summary:
LWP ID           Type             stime               utime               nv_ctx                 ctx            CPUs allowed
23319            Main,OpenMP      2.38                 90.69              1                           1537         [1,65]
23324            ZeroSum          0.27                 0.18                 0                          25             [71]
23332.           OpenMP           0.33                 98.92              0                          5               [1,65]

...or equivalent.