Remove some warnings about uninitialized values.

This commit was SVN r21695.

orte/mca/ras/slurm/ras_slurm_module.c

@@ -69,7 +69,7 @@ static int orte_ras_slurm_allocate(opal_list_t *nodes)
     char * tmp;
     char *slurm_jobid;
     
-    slurm_jobid - getenv("SLURM_JOBID");
+    slurm_jobid = getenv("SLURM_JOBID");
     /* don't need to check this for NULL as we wouldn't
      * have been selected if it wasn't already found
      *

orte/util/nidmap.c

@@ -595,14 +595,13 @@ int orte_util_decode_nodemap(opal_byte_object_t *bo)
 
 int orte_util_encode_pidmap(opal_byte_object_t *boptr)
 {
-    int32_t *nodes;
     orte_proc_t *proc;
-    int i, j, k;
     opal_buffer_t buf;
     orte_local_rank_t *lrank = NULL;
     orte_node_rank_t *nrank = NULL;
     orte_job_t *jdata = NULL;
-    int rc;
+    int32_t *nodes = NULL;
+    int i, j, k, rc = ORTE_SUCCESS;
 
     /* setup the working buffer */
     OBJ_CONSTRUCT(&buf, opal_buffer_t);