Add missing return statement
Add missing return statement

MsgpackIODevice::dispatch Request either sends an error response
or calls a request handler to handle the request. A missing  return
was causing it to do both things.

Pireax/neovim-qt,ravloony/neovim-qt,ngkaho1234/neovim-qt,Pireax/neovim-qt,0x90sled/neovim-qt,0x90sled/neovim-qt,ravloony/neovim-qt,equalsraf/neovim-qt,equalsraf/neovim-qt,ngkaho1234/neovim-qt,ravloony/neovim-qt,Pireax/neovim-qt,equalsraf/neovim-qt,equalsraf/neovim-qt,0x90sled/neovim-qt,ngkaho1234/neovim-qt