Use 'silent! unsilent source' in on_source
Use 'silent! unsilent source' in on_source

"silent!" is required to ignore E122, E174 and E227, and "unsilent"
displays any messages.

Thanks to Ingo Karkat!

TKNGUE/neobundle.vim,jhchabran/neobundle.vim,AndBicScadMedia/neobundle.vim,Shougo/neobundle.vim,netroby/vimsuite