Merge branch '425-consistency-between-thermal-and-damage-spectral-solver-in-formresidual' into 'development'

thermal and damage formResidual r follow the same convention

Closes #425

See merge request damask/DAMASK!954

Author: hyharry

src/grid/grid_damage_spectral.f90

@@ -359,8 +359,7 @@ subroutine formResidual(residual_subdomain,x_scal,r,dummy,err_PETSc)
                + mu_ref*phi(i,j,k)
     end do; end do; end do
 
-    r = max(min(utilities_GreenConvolution(r, K_ref, mu_ref, Delta_t_),phi_lastInc),num%phi_min) &
-      - phi
+    r = phi - max(min(utilities_GreenConvolution(r, K_ref, mu_ref, Delta_t_),phi_lastInc),num%phi_min)
   end associate
   err_PETSc = 0