[gnome-shell-sass] _common: Fix fontsize mixin usage

[Jasper St. Pierre <jstpierre src gnome org>]

commit ffaf0147e477ffaff845cfa009a7b21dc9cc459b
Author: Jasper St. Pierre <jstpierre mecheye net>
Date:   Fri Feb 20 17:38:07 2015 -0800

    _common: Fix fontsize mixin usage

 _common.scss |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/_common.scss b/_common.scss
index 217c1df..5fe99d7 100644
--- a/_common.scss
+++ b/_common.scss
@@ -161,7 +161,7 @@ StScrollBar {
   }
   .run-dialog-button-box { padding-top: 1em; }
   .run-dialog-label {
-    font-size: fontsize($font-size + 1.1);
+    @include fontsize($font-size + 1.1);
     font-weight: bold;
     color: darken($osd_fg_color,10%);
     padding-bottom: .4em;
@@ -176,7 +176,7 @@ StScrollBar {
   .show-processes-dialog-subject,
   .mount-question-dialog-subject,
   .end-session-dialog-subject { //this should be a generic header class
-    font-size: fontsize($font-size * 1.3);
+    @include fontsize($font-size * 1.3);
   }
 
 /* End Session Dialog */