Fix typos in daemon

Signed-off-by: bin liu <liubin0329@gmail.com>

daemon/cluster/controllers/plugin/controller.go

@@ -26,7 +26,7 @@ import (
 // We'll also end up with many tasks all pointing to the same plugin ID.
 //
 // TODO(@cpuguy83): registry auth is intentionally not supported until we work out
-// the right way to pass registry crednetials via secrets.
+// the right way to pass registry credentials via secrets.
 type Controller struct {
 	backend Backend
 	spec    runtime.PluginSpec

daemon/graphdriver/lcow/lcow.go

@@ -409,7 +409,7 @@ func (d *Driver) terminateServiceVM(id, context string, force bool) (err error)
 		svm.signalStopFinished(err)
 	}()
 
-	// Now it's possible that the serivce VM failed to start and now we are trying to termiante it.
+	// Now it's possible that the serivce VM failed to start and now we are trying to terminate it.
 	// In this case, we will relay the error to the goroutines waiting for this vm to stop.
 	if err := svm.getStartError(); err != nil {
 		logrus.Debugf("lcowdriver: terminateservicevm: %s had failed to start up: %s", id, err)

daemon/logger/logger.go

@@ -42,7 +42,7 @@ func PutMessage(msg *Message) {
 	messagePool.Put(msg)
 }
 
-// Message is datastructure that represents piece of output produced by some
+// Message is data structure that represents piece of output produced by some
 // container.  The Line member is a slice of an array whose contents can be
 // changed after a log driver's Log() method returns.
 //
@@ -133,7 +133,7 @@ func (w *LogWatcher) WatchClose() <-chan struct{} {
 	return w.closeNotifier
 }
 
-// Capability defines the list of capabilties that a driver can implement
+// Capability defines the list of capabilities that a driver can implement
 // These capabilities are not required to be a logging driver, however do
 // determine how a logging driver can be used
 type Capability struct {