[gnome-panel] theme: fix warning

[Alberts Muktupāvels <muktupavels src gnome org>]

commit bdae460c4830b2bb2192ae6b4e1bc506f3f72492
Author: Alberts Muktupāvels <alberts muktupavels gmail com>
Date:   Wed Sep 7 12:13:11 2016 +0300

    theme: fix warning

 data/theme/Adwaita/gnome-panel-dark.css |    2 +-
 data/theme/Adwaita/gnome-panel.css      |    2 +-
 data/theme/HighContrast/gnome-panel.css |    2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/data/theme/Adwaita/gnome-panel-dark.css b/data/theme/Adwaita/gnome-panel-dark.css
index 23b6674..5ba1959 100644
--- a/data/theme/Adwaita/gnome-panel-dark.css
+++ b/data/theme/Adwaita/gnome-panel-dark.css
@@ -22,7 +22,7 @@ gp-calendar-window label,
 #tasklist-button label,
 #clock-applet-button label,
 #showdesktop-button label {
-  font: regular;
+  font-weight: normal;
   color: #ffffff;
 }
 
diff --git a/data/theme/Adwaita/gnome-panel.css b/data/theme/Adwaita/gnome-panel.css
index 54f5d76..5107629 100644
--- a/data/theme/Adwaita/gnome-panel.css
+++ b/data/theme/Adwaita/gnome-panel.css
@@ -22,7 +22,7 @@ gp-calendar-window label,
 #tasklist-button label,
 #clock-applet-button label,
 #showdesktop-button label {
-  font: regular;
+  font-weight: normal;
   color: #000000;
 }
 
diff --git a/data/theme/HighContrast/gnome-panel.css b/data/theme/HighContrast/gnome-panel.css
index 0e2e4e6..feed5cf 100644
--- a/data/theme/HighContrast/gnome-panel.css
+++ b/data/theme/HighContrast/gnome-panel.css
@@ -21,7 +21,7 @@ gp-calendar-window label,
 #tasklist-button label,
 #clock-applet-button label,
 #showdesktop-button label {
-  font: regular;
+  font-weight: normal;
   color: #000000;
 }