Fixes and simplifications to PMC parsing
Fixes and simplifications to PMC parsing

The updated PMC parsing code was hard-coded to four PMC entries in one
place and unnecessarily had two places where data was printed.
Simplifying this ensures that the results are always sorted, and that
the sorting is always by time.

google/UIforETW,google/UIforETW,google/UIforETW,google/UIforETW