test failure

[Alessandro-Barbieri]

I've packaged er for the gentoo overlay guru but our CI failed at testing it
https://bugs.gentoo.org/784644

Build log: https://784644.bugs.gentoo.org/attachment.cgi?id=701382
Test log: https://784644.bugs.gentoo.org/attachment.cgi?id=701385

1/2 Testing: er_test
1/2 Test: er_test
Command: "/usr/bin/mpirun" "-np" "3" "./er_test" "256"
Directory: /var/tmp/portage/sys-cluster/er-0.0.4/work/er-0.0.4_build/test
"er_test" start time: Apr 21 02:51 CEST
Output:
----------------------------------------------------------
REDSET 0.0.5 ABORT: rank 0 on localhost: Number of partner replicas (1) must be in range [1,1) with 1 ranks in set @ /var/tmp/portage/sys-cluster/redset-0.0.5/work/redset-0.0.5/src/redset_partner.c:116
REDSET 0.0.5 ABORT: rank 1 on localhost: Number of partner replicas (1) must be in range [1,1) with 1 ranks in set @ /var/tmp/portage/sys-cluster/redset-0.0.5/work/redset-0.0.5/src/redset_partner.c:116
REDSET 0.0.5 ABORT: rank 2 on localhost: Number of partner replicas (1) must be in range [1,1) with 1 ranks in set @ /var/tmp/portage/sys-cluster/redset-0.0.5/work/redset-0.0.5/src/redset_partner.c:116
--------------------------------------------------------------------------
MPI_ABORT was invoked on rank 0 in communicator MPI_COMM_WORLD
with errorcode -1.