Silent option

If the silent option is set, tagbar doesn't echo out information about
the tag the cursor is on in the tagbar window.

plugin/tagbar.vim

@@ -75,6 +75,7 @@ function! s:setup_options() abort
         \ ['vertical', 0],
         \ ['width', 40],
         \ ['zoomwidth', 1],
+        \ ['silent', 0],
     \ ]
 
     for [opt, val] in options