gssapi: update unit tests to fix govet complaints

Author: alextoombs

buffer_test.go

@@ -17,7 +17,7 @@ func TestNewBuffer(t *testing.T) {
 	for a := range []int{allocNone, allocMalloc, allocGSSAPI} {
 		b, err := l.MakeBuffer(a)
 		if err != nil {
-			t.Fatalf("alloc: %v: ", a, err)
+			t.Fatalf("alloc: %v: %s", a, err)
 		}
 		defer b.Release()
 
@@ -29,7 +29,7 @@ func TestNewBuffer(t *testing.T) {
 				a, b.Lib, l)
 		}
 		if b.C_gss_buffer_t == nil {
-			t.Fatal("alloc: %v: Got nil buffer, expected non-nil", a)
+			t.Fatalf("alloc: %v: Got nil buffer, expected non-nil", a)
 		}
 		if b.String() != "" {
 			t.Fatalf(`alloc: %v: String(): got %q, expected ""`,

name_test.go

@@ -61,7 +61,7 @@ func TestNameImportExport(t *testing.T) {
 	defer kerbOID.Release()
 
 	if !mechs.Contains(kerbOID) {
-		t.Fatalf("Expected %s to be in %s", kerbOID.DebugString, mechs.DebugString)
+		t.Fatalf("Expected %q to be in %q", kerbOID.DebugString(), mechs.DebugString())
 	}
 
 	makeNames := func(n string) (

test/main_test.go

@@ -30,7 +30,7 @@ type Context struct {
 	loadonce    sync.Once
 
 	// Service credentials loaded from keytab
-	credential *gssapi.CredId `json:"-"`
+	credential *gssapi.CredId
 }
 
 var c = &Context{}