[glib: 3/6] gspawn, win32: fix redirecting only stderr

[Philip Withnall <pwithnall src gnome org>]

commit cafb61a1799be28a43e6bb1da7760cda91ee2818
Author: Vasily Galkin <galkin-vv yandex ru>
Date:   Wed Dec 26 23:51:54 2018 +0300

    gspawn, win32: fix redirecting only stderr
    
    Problem was just a typo - wrong variable was checked before enabling
    stderr redirection.
    This fixes error-only redirection spawn-test added in previous commit.
    
    Behavior while redirecting only stdout should be unaffected,
    since old code tried to redirect stderr to -1 in such case,
    which silently failed I think.

 glib/gspawn-win32.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/glib/gspawn-win32.c b/glib/gspawn-win32.c
index b0cf5ab7a..3a746914b 100644
--- a/glib/gspawn-win32.c
+++ b/glib/gspawn-win32.c
@@ -657,7 +657,7 @@ do_spawn_with_fds (gint                 *exit_status,
       new_argv[ARG_STDOUT] = "-";
     }
   
-  if (stdout_fd != -1)
+  if (stderr_fd != -1)
     {
       _g_sprintf (args[ARG_STDERR], "%d", stderr_fd);
       new_argv[ARG_STDERR] = args[ARG_STDERR];