[gnome-terminal] util: Fix compilation error in previous commit

[Colin Walters <walters src gnome org>]

commit d4b897ed832ad0487c193e27769a1f28a0491840
Author: Colin Walters <walters verbum org>
Date:   Sun Feb 14 09:44:06 2016 -0500

    util: Fix compilation error in previous commit

 src/terminal-util.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/terminal-util.c b/src/terminal-util.c
index 9fcbd5d..5a0edb3 100644
--- a/src/terminal-util.c
+++ b/src/terminal-util.c
@@ -795,7 +795,7 @@ s_to_rgba (GVariant *variant,
   if (!gdk_rgba_parse (color, str))
     return FALSE;
 
-  color.alpha = 1.0;
+  color->alpha = 1.0;
   *result = color;
   return TRUE;
 }