hdf5_ep

[svn-r19947] Bug fix: testph5.in failed to run the 't_shapesame -p' by claiming it could
not find t_shapesame in daily test.  Turned out the mpiexec launcher is
working like real shell and the daily test signon (hdftest) does not have
"." in its $PATH.  So, it could not automatically look for executables in
the current directory.

Solution:
Change the executable to an explicit ./t_shapesame. Now mpiexec can "find"
it.

Tested by hand in Amani.