hdf5_msb

[svn-r20048] Description:
    Bring Coverity changes back to trunk:

r19733:
Fix memory leak in h5perf_serial.  Global buffer "buffer2" was allocated at the
beginning of do_sio() but never freed.  Added call to free() at end of do_sio().

r19734:
Fix memory leak in iopipe.  Buffer "the_data" was allocated at the beginning of
main() but never freed.  Added call to free() at end of main().


Tested on:
    Coverity branch in daily tests & Mac