Additional PetscInt_FMT empty string and SETERRQ trailing newline fixes

remove trailing newline from SETERRQ

applied attribute format fixes to mat headers

Merge branch 'stefanozampini/petsc4py' into 'main'

Some work on petsc4py

See merge request petsc/petsc!4644

MatProduct: move API from internal petsc4py usage to PETSc headers.

MATIS: fix what NULL means for l2gmap

conceptually, a NULL l2map is a full local to global map
petsc4py: support for MatCreateIS and add MATIS tests

Mat: add missing general fallbacks for matrices flagged as symmetric

Fix MatMatSolve_Basic using MatDense API to prevent from unneeded device2host copies

MatConvert_Basic: use matvecs if getrow is not implemented

Allow MatEqual to run the matvecs comparison if the implementation is not found
Add test for MATPYTHON

Merge remote-tracking branch 'origin/release'

Docs: fix formatting on MatSetOption man page

MatDuplicate: use PetscObject instead of DM type

MatProduct: more informative errors

MatProduct: allow matching op to fail

This can happen when a class will have its internal dispatching depending on subclasses

MatCreateSubMatrices() and MatCreateRedundantMatrix() now propagate the bindingpropagates flag.

MatCreateVecs() now propagates the bindingpropagates flag.

MatCreateSubMatrices() and MatCreateRedundantMatrix() now honor bindingpropagates flag.

MatCreateVecs() now honors mat->bindingpropagates flag.

MatCreateSubMatrices() and MatCreateRedundantMatrix() now bind created matrices to CPU if input matrix is bound.

MatCreateVecs() now calls VecBindToCPU() on created vectors if the matrix is bound to the CPU.

Merge remote-tracking branch 'origin/release'

Merge branch 'jczhang/fix-PCTelescope-GPU' into 'release'

Fix PCTelescope GPU matrices

See merge request petsc/petsc!4471

Merge remote-tracking branch 'origin/release'

MatProduct: need to check symmetry between symbolic and numeric

Suppose we have code:
MatTransposeMatMult(A,B,MAT_INITIAL_MATRIX,fill,C);
MatTransposeMatMult(E,B,MAT_REUSE_MATRIX,fill,C);

If A

MatProduct: need to check symmetry between symbolic and numeric

Suppose we have code:
MatTransposeMatMult(A,B,MAT_INITIAL_MATRIX,fill,C);
MatTransposeMatMult(E,B,MAT_REUSE_MATRIX,fill,C);

If A is symmetric and E is not, but E has the same nonzero pattern as A, then above code is legitimate.
If we change the MatProductType in MAT_INITIAL_MATRIX from MATPRODUCT_AtB to MATPRODUCT_AB, then
in MAT_REUSE_MATRIX, we need to redo symbolic otherwise C=E^B would be wronlgy computed as C=EB.

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MAT: add MatGetRootType_Private to return root type of a matrix

Fix missing ierr =, removed incorrect CHKERRQ()

Commit-type: error-checking, style-fix
\spend 45m