Clarify build-in bugreporter use

Summary: Just to distinguish this from the other bug reporter we have.

Reviewed By: cekkaewnumchai

Differential Revision: D18636872

fbshipit-source-id: d7bfca3908083d198647af90aa6d9d1c615e6a44

src/chrome/TitleBar.tsx

@@ -181,7 +181,7 @@ class TitleBar extends React.Component<Props, StateFromProps> {
           <Button
             compact={true}
             onClick={() => this.props.setActiveSheet(ACTIVE_SHEET_BUG_REPORTER)}
-            title="Report Bug"
+            title="Report Bug in Flipper"
             icon="bug"
           />
         )}