In mpi/mpichgm, fix potential problem formatting GMPI_PORT, from

    Ernest Artiaga, BSC.

NEWS

@@ -4,6 +4,8 @@ documents those changes that are of interest to users and admins.
 * Changes in SLURM 1.2.5
 ========================
  -- Fix nodelist truncation in "scontrol show jobs" output
+ -- In mpi/mpichgm, fix potential problem formatting GMPI_PORT, from
+    Ernest Artiaga, BSC.
 
 * Changes in SLURM 1.2.4
 ========================

src/plugins/mpi/mpichgm/mpichgm.c

@@ -366,7 +366,7 @@ gmpi_thr_create(const mpi_plugin_client_info_t *job, char ***env)
 	}
 	slurm_attr_destroy(&attr);
 
-	env_array_overwrite_fmt(env, "GMPI_PORT",  "%u", port);
+	env_array_overwrite_fmt(env, "GMPI_PORT",  "%hu", port);
 	env_array_overwrite_fmt(env, "GMPI_MAGIC", "%u", job->jobid);
 	env_array_overwrite_fmt(env, "GMPI_NP",    "%d", 
 				job->step_layout->task_cnt);