[petsc-dev] changes for petsc tests for XL Fortran compiler

[Satish Balay]

On Wed, 13 Jun 2018, Smith, Barry F. wrote:

> > this way the example/user code uses:
> > 
> > +        call PetscFlush(6)
> > 
> > [i.e with the 'call' statement explicitly listed in example/user code]
> 
>    This is fine (except for possibly one user who would just need to change their code).

Well the test for flush()/flush_() was broken [I pushed a fix for
this]. So its unlikely there is any user of this code.

https://bitbucket.org/petsc/petsc/commits/62b7aeb906df4258c2cd362570515e1ebe593d31

Satish