perf(dropdown): changed 'this' to 't' (bootstrap-vue#1500)

larionov · pi0 · commit ace3e94a0b57 · 2018-01-03T12:04:40.000+03:30
diff --git a/src/components/dropdown/dropdown.js b/src/components/dropdown/dropdown.js
@@ -62,7 +62,7 @@ export default {
         class: t.menuClasses,
         attrs: {
           role: t.role,
-          'aria-labelledby': t.safeId(this.split ? '_BV_toggle_' : '_BV_button_')
+          'aria-labelledby': t.safeId(t.split ? '_BV_toggle_' : '_BV_button_')
         },
         on: {
           mouseover: t.onMouseOver,
