addressed review comments

Author: YamunadeviShanmugam

test/extended/cli/admin.go

@@ -558,7 +558,7 @@ var _ = g.Describe("[sig-cli] oc adm", func() {
 		args := append([]string{"--file", "image-references"}, regArgs...)
 		args = append(args, payloadImage)
 		out, err := oc.AsAdmin().Run("adm", "release", "extract").Args(args...).Output()
-		o.Expect(err).NotTo(o.HaveOccurred(), "oc adm release extract failed with error%s", err)
+		o.Expect(err).NotTo(o.HaveOccurred(), "oc adm release extract failed with error")
 
 		o.Expect(out).To(o.ContainSubstring(`"kind": "ImageStream"`))
 		o.Expect(out).To(o.ContainSubstring(`"apiVersion": "image.openshift.io/v1"`))