Fixed normal bug EXT-7059 (Need to add tool-tip for 'Share' verb button on 'People' side panel).

- Added "Share an inventory item" tooltip for button in xml.

Reviewed by Vadim Savchuk at https://codereview.productengine.com/secondlife/r/338/

--HG--
branch : product-engine

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

@@ -490,6 +490,7 @@ Looking for people to hang out with? Try the [secondlife:///app/worldmap World M
          label="Share"
          layout="topleft"
          name="share_btn"
+         tool_tip="Share an inventory item"
          width="62" />
         <button
          follows="bottom|left"