Fix lint errors caught by go test

Test: m checkbuild
Change-Id: I5b8522aa9da22fc595e4f26c23e7836de59bdfa2
diff --git a/cmd/path_interposer/main_test.go b/cmd/path_interposer/main_test.go
index 4b25c44..c89d623 100644
--- a/cmd/path_interposer/main_test.go
+++ b/cmd/path_interposer/main_test.go
@@ -183,7 +183,7 @@
 	interposer := setup(t)
 	err := os.Remove(interposer + "_origpath")
 	if err != nil {
-		t.Fatalf("Failed to remove:", err)
+		t.Fatal("Failed to remove:", err)
 	}
 
 	exitCode, err := Main(ioutil.Discard, ioutil.Discard, interposer, []string{"true"}, mainOpts{})