hdf5_ep

[svn-r24794] Port r24757 from trunk to 1.8 branch.

Tested: ostrich, platypus (h5committest, apparent system issue on jam and koala)

Log from r24635:
Change assertion to condition check/error return.  Should fix periodic
assertion failure in fheap test (in test that is expected to fail cleanly).

Fix typo in H5detect.c

Tested: ostrich, platypus (h5committest - jam and koala having issues)