add SLURM srun as tentative MPI runner

Author: perazz

src/metapackage/fpm_meta_mpi.f90

@@ -450,7 +450,8 @@ subroutine get_mpi_runner(command,verbose,error)
         logical, intent(in) :: verbose
         type(error_t), allocatable, intent(out) :: error
 
-        character(*), parameter :: try(*) = ['mpiexec    ','mpirun     ','mpiexec.exe','mpirun.exe ']
+        character(*), parameter :: try(*) = ['mpiexec    ','mpirun     ','mpiexec.exe','mpirun.exe ', &
+                                             'srun       ']
         character(:), allocatable :: bindir
         integer :: itri
         logical :: success