Disable or capture log from go-vitess

[jfontan]

Vitess uses glog for logging and it sometimes writes information in between our logging:

INFO[0000] server started and listening on 0.0.0.0:3333 
INFO[0011] NewConnection: client 1                      
ERROR: logging before flag.Parse: W1022 11:38:05.781017   13955 server.go:310] Error authenticating user using MySQL native password: Access denied for user 'mysql_user3' (errno 1045) (sqlstate 28000)
INFO[0011] ConnectionClosed: client 1    

We could disable these lines using environment variables for glog or even better change the logging facility to use ours. This probably requires changing the logging stub when importing code:

https://github.com/src-d/go-vitess/blob/v1.2.0/vt/log/log.go

[erizocosmico]

Didn't we have a script that replaced glog with logrus?

[jfontan]

Not anymore. I suppose we can take it back:

031d7f7#diff-6b0d443d17b4c508f1f4808ec1ea8391R43