[gtk+] gdk: Fix a typo

[Krzesimir Nowak <krnowak src gnome org>]

commit 39f91d7cdbf0081e827bfece2dec034c15310e2d
Author: Krzesimir Nowak <qdlacz gmail com>
Date:   Fri May 22 14:39:53 2015 +0200

    gdk: Fix a typo

 gdk/x11/gdkscreen-x11.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gdk/x11/gdkscreen-x11.c b/gdk/x11/gdkscreen-x11.c
index 665a0d0..8b2374e 100644
--- a/gdk/x11/gdkscreen-x11.c
+++ b/gdk/x11/gdkscreen-x11.c
@@ -664,7 +664,7 @@ init_randr15 (GdkScreen *screen)
 
   x11_screen->primary_monitor = 0;
 
-  for (i - 0; i < x11_screen->n_monitors; i++)
+  for (i = 0; i < x11_screen->n_monitors; i++)
     {
       if (x11_screen->monitors[i].output == primary_output)
         {