[gnome-builder] themes: fix whitespace

[Christian Hergert <chergert src gnome org>]

commit 20df20a67d271aa8133d9ab7278d1698513e0655
Author: Christian Hergert <chergert redhat com>
Date:   Fri Jan 11 15:54:43 2019 -0800

    themes: fix whitespace

 src/libide/themes/themes/shared/shared-greeter.css | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/src/libide/themes/themes/shared/shared-greeter.css 
b/src/libide/themes/themes/shared/shared-greeter.css
index 8e8c93444..51d9022d2 100644
--- a/src/libide/themes/themes/shared/shared-greeter.css
+++ b/src/libide/themes/themes/shared/shared-greeter.css
@@ -11,7 +11,7 @@
 }
 
 .greeter flowboxchild dzlpillbox {
- background: alpha(shade(@theme_bg_color, 0.9), 0.8);
+  background: alpha(shade(@theme_bg_color, 0.9), 0.8);
 }
 
 /*