Minor preference page cleanups.

indra/newview/skins/default/xui/en/panel_preferences_UI.xml

@@ -721,7 +721,7 @@ Default 0. Larger values may not work well.
          length="1"
          line_spacing.pixels="5">
           pixels (requires restart)
-V2/3 default 0. V1 default [TODO: unknown].
+V2/3 default 0. V1 default 2.
         </text>
 
         <text

indra/newview/skins/default/xui/en/panel_preferences_general.xml

@@ -326,7 +326,7 @@
      control_name="FSNameTagShowLegacyUsernames"
 	 enabled_control="NameTagShowUserNames"
      height="16"
-     label="Legacy names instead"
+     label="Legacy names instead of usernames"
      layout="topleft"
      left_pad="50"
      name="FSshow_legacyun"

indra/newview/skins/default/xui/en/panel_preferences_move.xml

@@ -313,7 +313,7 @@
         <button
          follows="top|left"
          height="23"
-         label="Other Devices"
+         label="Joystick Configuration"
          left="130"
          name="joystick_setup_button"
          top_pad="10"