Catch Errno::ETIMEDOUT errors from Fetcher#fetch

lib/bundler/fetcher.rb

@@ -143,8 +143,8 @@ def fetch(uri, counter = 0)
       begin
         Bundler.ui.debug "Fetching from: #{uri}"
         response = @@connection.request(uri)
-      rescue Timeout::Error, Errno::EINVAL, Errno::ECONNRESET, EOFError,
-             SocketError, Net::HTTPBadResponse, Net::HTTPHeaderSyntaxError,
+      rescue Timeout::Error, Errno::EINVAL, Errno::ECONNRESET, Errno::ETIMEDOUT,
+             EOFError, SocketError, Net::HTTPBadResponse, Net::HTTPHeaderSyntaxError,
              Net::HTTP::Persistent::Error, Net::ProtocolError => e
         raise HTTPError, "Network error while fetching #{uri}"
       end