[gtk+] shortcut label: Tweak modifier key rendering

[Matthias Clasen <matthiasc src gnome org>]

commit 03769e3830ca3c8ab8265ac1a52d4000e52409d9
Author: Matthias Clasen <mclasen redhat com>
Date:   Fri Dec 4 13:16:35 2015 -0500

    shortcut label: Tweak modifier key rendering
    
    The subscript was affecting the vertical alignment too much,
    so tweak the rendering of the L/R markers to avoid that. Also,
    mark these as translatable.

 gtk/gtkshortcutlabel.c |   16 +++++++++++++---
 1 files changed, 13 insertions(+), 3 deletions(-)
---
diff --git a/gtk/gtkshortcutlabel.c b/gtk/gtkshortcutlabel.c
index ef7d462..5cb7f06 100644
--- a/gtk/gtkshortcutlabel.c
+++ b/gtk/gtkshortcutlabel.c
@@ -60,7 +60,12 @@ get_modifier_label (guint key)
     case GDK_KEY_Meta_L:
     case GDK_KEY_Super_L:
     case GDK_KEY_Hyper_L:
-      subscript = "L";
+      /* Translators: This string is used to mark left/right variants of modifier
+       * keys in the shortcut window (e.g. Control_L vs Control_R). Please keep
+       * this string very short, ideally just a single character, since it will
+       * be rendered as part of the key.
+       */
+      subscript = C_("keyboard side marker", "L");
       break;
     case GDK_KEY_Shift_R:
     case GDK_KEY_Control_R:
@@ -68,7 +73,12 @@ get_modifier_label (guint key)
     case GDK_KEY_Meta_R:
     case GDK_KEY_Super_R:
     case GDK_KEY_Hyper_R:
-      subscript = "R";
+      /* Translators: This string is used to mark left/right variants of modifier
+       * keys in the shortcut window (e.g. Control_L vs Control_R). Please keep
+       * this string very short, ideally just a single character, since it will
+       * be rendered as part of the key.
+       */
+      subscript = C_("keyboard side marker", "R");
       break;
     default:
       g_assert_not_reached ();
@@ -98,7 +108,7 @@ get_modifier_label (guint key)
       g_assert_not_reached ();
    }
 
-  return g_strdup_printf ("%s<sub>%s</sub>", label, subscript);
+  return g_strdup_printf ("%s <small><b>%s</b></small>", label, subscript);
 }
 
 static gchar **