hdf5_msb

[svn-r12329] Purpose:
work-around solution for special cases in collective IO

Description:
For collective IO
if some processes don't have any contributions to IO, even with the new SGI compiler(7.4.4m), the testing program will be hanged. Previously only thought it didn't work with old compiler. It turned out not to be true.

Solution:
Turned off the special flag: H5_MPI_SPECIAL_COLLECTIVE_IO_WORKS

Platforms tested:
UCAR IRIX 6.5
this file only affects IRIX 6.x system. No need to test at other platforms.

Misc. update: