cli/debug: use string-literals for easier grep'ing

Also removed some newlines from t.Fatal() as they shouldn't be needed.

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

cli/debug/debug_test.go

@@ -14,20 +14,20 @@ func TestEnable(t *testing.T) {
 	}()
 	Enable()
 	if os.Getenv("DEBUG") != "1" {
-		t.Fatalf("expected DEBUG=1, got %s\n", os.Getenv("DEBUG"))
+		t.Fatalf("expected DEBUG=1, got %s", os.Getenv("DEBUG"))
 	}
 	if logrus.GetLevel() != logrus.DebugLevel {
-		t.Fatalf("expected log level %v, got %v\n", logrus.DebugLevel, logrus.GetLevel())
+		t.Fatalf("expected log level %v, got %v", logrus.DebugLevel, logrus.GetLevel())
 	}
 }
 
 func TestDisable(t *testing.T) {
 	Disable()
 	if os.Getenv("DEBUG") != "" {
-		t.Fatalf("expected DEBUG=\"\", got %s\n", os.Getenv("DEBUG"))
+		t.Fatalf(`expected DEBUG="", got %s`, os.Getenv("DEBUG"))
 	}
 	if logrus.GetLevel() != logrus.InfoLevel {
-		t.Fatalf("expected log level %v, got %v\n", logrus.InfoLevel, logrus.GetLevel())
+		t.Fatalf("expected log level %v, got %v", logrus.InfoLevel, logrus.GetLevel())
 	}
 }