Fix logrus formatting

This fix tries to fix logrus formatting by removing `f` from
`logrus.[Error|Warn|Debug|Fatal|Panic|Info]f` when formatting string
is not present.

This fix fixes #23459.

Signed-off-by: Yong Tang <yong.tang.github@outlook.com>
Upstream-commit: a72b45dbec3caeb3237d1af5aedd04adeb083571
Component: engine

components/engine/api/client/hijack.go

@@ -46,7 +46,7 @@ func (cli *DockerCli) HoldHijackedConnection(ctx context.Context, tty bool, inpu
 				_, err = stdcopy.StdCopy(outputStream, errorStream, resp.Reader)
 			}
 
-			logrus.Debugf("[hijack] End of stdout")
+			logrus.Debug("[hijack] End of stdout")
 			receiveStdout <- err
 		}()
 	}
@@ -62,7 +62,7 @@ func (cli *DockerCli) HoldHijackedConnection(ctx context.Context, tty bool, inpu
 					cli.restoreTerminal(inputStream)
 				})
 			}
-			logrus.Debugf("[hijack] End of stdin")
+			logrus.Debug("[hijack] End of stdin")
 		}
 
 		if err := resp.CloseWrite(); err != nil {

components/engine/api/server/server.go

@@ -163,7 +163,7 @@ func (s *Server) InitRouter(enableProfiler bool, routers ...router.Router) {
 func (s *Server) createMux() *mux.Router {
 	m := mux.NewRouter()
 
-	logrus.Debugf("Registering routers")
+	logrus.Debug("Registering routers")
 	for _, apiRouter := range s.routers {
 		for _, r := range apiRouter.Routes() {
 			f := s.makeHTTPHandler(r.Handler())