build: fix ctable warnings with arch-linux-analyzer

Reported-by: Barry Smith <bsmith@mcs.anl.gov>

Merge branch 'barry/fortran-update'

Remove the needed def extension from Fortran include files

Time: .3 hours
Thanks-to: Satish Balay <balay@mcs.anl.gov>

Merge remote-tracking branch 'origin/balay/fix-ctable-hash'

fix typo in error message; provide MPI error code with error message

Time: 0 hours
Thanks-to: Mohammed Al-Mosallam <Al-MosallamMB@cardiff.ac.uk>

ctable: change to use double hashing

typo "contiquous" should be "contiguous",

Reported-by: Peter J. Puchyr <pjpuchyr@gmail.com>

Start adding Fortran custom Fortran interface definitions for petscsys.h90 such as PetscOptionsGetInt()

Time: 1.5 hours
Reported-by: Mark Filipiak <m.filipiak@epcc.ed.ac.uk>

clang: more -Wcomma fixes [split up comma statements]

Merge branch 'barry/housekeeping-2'

Merge branch 'maint'

win32: fix bad NULL termination for PetscGetHostName() [creates binary data with -info]

replace uses of PetscMalloc() with PetscNew() or PetscMalloc1() where appropriate

manual page for MPIU_Allreduce(), test for PetscGetFullPath()

Reported-by: nightly tests gcov

sys: fix PetscStrToArray() for test example code in 5df95942a526786c70ecf8d645a952eca2fe7c29.

Revert "Invalid read in PetscStrToArray?"

As this breaks ther usages of PetscStrToArray() - for eg: runex11 at src/sys/classes/draw/examples/tests

This reverts commit 5df95942a526786c70ecf8d645a952

Revert "Invalid read in PetscStrToArray?"

As this breaks ther usages of PetscStrToArray() - for eg: runex11 at src/sys/classes/draw/examples/tests

This reverts commit 5df95942a526786c70ecf8d645a952eca2fe7c29.

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Invalid read in PetscStrToArray?

Try this with valgrind:

#include "petscsys.h"
int main () {
char s[] = "hello world! ";
int argc;
char **args;
PetscStrToArray(s,' ',&argc,&args);
}