[fmt] Don't print "<nil>" at the end of running fix.go.
[fmt] Don't print "<nil>" at the end of running fix.go.

codex8/lime-backend,limetext/lime-backend,limetext/lime-backend,limetext/lime-backend,codex8/lime-backend,bj7/lime-backend,bj7/lime-backend,ch1bo/lime-backend,limetext/lime-backend,codex8/lime-backend,limetext/backend,ch1bo/lime-backend,codex8/lime-backend,ch1bo/lime-backend,ch1bo/lime-backend,bj7/lime-backend,bj7/lime-backend