hdf5_msb

[svn-r5907] 
Purpose:
    bug turnaround in test_hdf5_fortran on a h5fmount_c call
Description:
    the H5I_nmembers(H5I_GROUP) call that is made inside
   h5fmount_c  -> H5G_replace_name -> H5I_nmembers(H5I_GROUP)

is not detecteting correctly that the entry belongs to the group list
therefore a call is made to H5I_search(H5I_DATATYPE) (there are always non-named datatypes)
and H5G_replace_ent is called with a search for the datatype group
ent = H5T_entof((H5T_t*)obj_ptr);

which returns a NULL ent

a tweak for this is to add
if( !ent) goto done;



Platforms tested:

windows 2000, Linux, Solaris with fortran