tools/mpirun: Fix some memory leaks by using setenv().

Signed-off-by: Austen Lauria <[email protected]>

Author: awlauria

ompi/tools/mpirun/main.c

@@ -28,9 +28,6 @@
 int main(int argc, char *argv[])
 {
     char *evar;
-#if OPAL_USING_INTERNAL_PMIX || OMPI_USING_INTERNAL_PRRTE
-    char *pvar;
-#endif
     char **pargs = NULL;
     char *pfx = NULL;
     int m, param_len;
@@ -39,16 +36,14 @@ int main(int argc, char *argv[])
     if (NULL != (evar = getenv("OPAL_PREFIX"))) {
 
 #if OMPI_USING_INTERNAL_PRRTE
-        opal_asprintf(&pvar, "PRTE_PREFIX=%s", evar);
-        putenv(pvar);
+        setenv("PRTE_PREFIX", evar, 1);
 #endif
 
 #if OPAL_USING_INTERNAL_PMIX
-        opal_asprintf(&pvar, "PMIX_PREFIX=%s", evar);
-        putenv(pvar);
+        setenv("PMIX_PREFIX", evar, 1);
 #endif
     }
-    putenv("PRTE_MCA_schizo_proxy=ompi");
+    setenv("PRTE_MCA_schizo_proxy", "ompi", 1);
 
     opal_argv_append_nosize(&pargs, "prterun");
     for (m=1; NULL != argv[m]; m++) {