Fixes the coll_allgather usage bug#3159

hppritcha merged 1 commit intoopen-mpi:v2.xopen-mpi/ompi:v2.xfrom

vspetrov:v2.x_c_coll_allgather_usage_bugfixvspetrov/ompi:v2.x_c_coll_allgather_usage_bugfixCopy head branch name to clipboard