[committed] Fix OMP_DISPLAY_ENV without {,G}OMP_STACKSIZE

[Jakub Jelinek]

Hi!

We print an uninitialized variable if OMP_DISPLAY_ENV=true is
in the environment, but {,G}OMP_STACKSIZE is not.

Fixed thusly, bootstrapped/regtested on x86_64-linux and i686-linux,
committed to trunk.

2017-03-30  Jakub Jelinek  <ja...@redhat.com>

        * env.c (initialize_env): Initialize stacksize to 0.

--- libgomp/env.c.jj    2017-01-01 12:45:52.000000000 +0100
+++ libgomp/env.c       2017-03-30 16:07:29.800247913 +0200
@@ -1187,7 +1187,7 @@ handle_omp_display_env (unsigned long st
 static void __attribute__((constructor))
 initialize_env (void)
 {
-  unsigned long thread_limit_var, stacksize;
+  unsigned long thread_limit_var, stacksize = 0;
   int wait_policy;
 
   /* Do a compile time check that mkomp_h.pl did good job.  */

        Jakub