Totally trivial spelling fix

This commit was SVN r25361.

orte/mca/errmgr/base/errmgr_base_fns.c

@@ -232,7 +232,7 @@ char* orte_errmgr_base_pmi_error(int pmi_err)
         case PMI_ERR_INVALID_NUM_ARGS: err_msg = "Invalid number of arguments"; break;
         case PMI_ERR_INVALID_ARGS: err_msg = "Invalid args argument"; break;
         case PMI_ERR_INVALID_NUM_PARSED: err_msg = "Invalid num_parsed length argument"; break;
-        case PMI_ERR_INVALID_KEYVALP: err_msg = "Invalid invalid keyvalp atgument"; break;
+        case PMI_ERR_INVALID_KEYVALP: err_msg = "Invalid keyvalp argument"; break;
         case PMI_ERR_INVALID_SIZE: err_msg = "Invalid size argument"; break;
 #if defined(PMI_ERR_INVALID_KVS)
 	/* pmi.h calls this a valid return code but mpich doesn't define it (slurm does). wtf */