hdf5_ep

[svn-r22094] Issue 7922 - follow-up checkin.  Daily test reported that PGCC (11.8-0) on jam and koala has trouble with the command "*p++ = *p OP tree_val" in the macro definition of H5Z_XFORM_DO_OP1 of H5Ztrans.c. It increments P first before doing the operation.  So I break down the command into two lines: "*p = *p OP tree_val; p++;"  I also reported the problem to PGI.

Tested on jam, koala, and ostrich.