hdf5_ep

[svn-r17455] Description:
    Correct a 'hsize_t *' to 'hsize_t' and vice versa.

Tested on:
    Mac OS X/32 10.5.8 (amazon) in debug mode
    Mac OS X/32 10.5.8 (amazon) w/C++ & FORTRAN, w/threadsafe,
        in production mode
    (too minor to require h5committest)