Fix reporting in shared ptr performance test
Fix reporting in shared ptr performance test

The code ported from the original bcema component relied on
using standard C++ iostreams, which are not available at this
layer of the bsl library.  Switch over to traditional C-style
printf reporting instead.

che2/bde,bloomberg/bde,bloomberg/bde,che2/bde,bloomberg/bde,bloomberg/bde,che2/bde,bloomberg/bde,che2/bde