chore: fix connection log information in dgraph alpha (#4303)

* Fixes #4298

Signed-off-by: Deepesh Pathak <deepshpathak@gmail.com>

conn/pool.go

@@ -44,7 +44,7 @@ var (
 // worker instances.  Right now it just holds one of them.
 type Pool struct {
 	sync.RWMutex
-	// A pool now consists of one connection.  gRPC uses HTTP2 transport to combine
+	// A pool now consists of one connection. gRPC uses HTTP2 transport to combine
 	// messages in the same TCP stream.
 	conn *grpc.ClientConn
 
@@ -145,7 +145,7 @@ func (p *Pools) Connect(addr string) *Pool {
 		go pool.shutdown() // Not being used, so release the resources.
 		return existingPool
 	}
-	glog.Infof("CONNECTED to %v\n", addr)
+	glog.Infof("CONNECTING to %s\n", addr)
 	p.all[addr] = pool
 	return pool
 }