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.

Fixed issue #23459

Signed-off-by: Daehyeok Mun <daehyeok@gmail.com>
Upstream-commit: fa710e504b0e3e51d4031790c18621b02dcd2600
Component: engine

components/engine/plugin/backend.go

@@ -62,7 +62,7 @@ func (pm *Manager) Pull(name string, metaHeader http.Header, authConfig *types.A
 	name = ref.String()
 
 	if p, _ := pm.pluginStore.GetByName(name); p != nil {
-		logrus.Debugf("plugin already exists")
+		logrus.Debug("plugin already exists")
 		return nil, fmt.Errorf("%s exists", name)
 	}
 

components/engine/plugin/distribution/pull.go

@@ -113,7 +113,7 @@ func Pull(ref reference.Named, rs registry.Service, metaheader http.Header, auth
 			return nil, err
 		}
 		if !confirmedV2 {
-			logrus.Debugf("pull.go: !confirmedV2")
+			logrus.Debug("pull.go: !confirmedV2")
 			return nil, ErrUnsupportedRegistry
 		}
 		logrus.Debugf("Trying to pull %s from %s %s", repoInfo.Name(), endpoint.URL, endpoint.Version)