vchoi_fork

[svn-r8272] Purpose:
bug fix.

Description:
H5FD_mpio_init was calling the public API version of H5Iget_type()
which would clear the error stack, thus cleared away error messages
prematurely.

Solution:
Changed it to call the private version of H5I_get_type() which
does not clear the error stack.

Platforms tested:
o2 (SGI) parallel.