helpers: fix some go vet errors

helpers/general_test.go

@@ -263,7 +263,7 @@ func TestSeq(t *testing.T) {
 
 		if b, ok := this.expect.(bool); ok && !b {
 			if err == nil {
-				t.Errorf("[%d] TestSeq didn't return an expected error %s", i)
+				t.Errorf("[%d] TestSeq didn't return an expected error", i)
 			}
 		} else {
 			if err != nil {

helpers/path_test.go

@@ -550,7 +550,7 @@ func TestRemoveSubpaths(t *testing.T) {
 	got := RemoveSubpaths([]string{"hello", "hello/world", "foo/bar", ""})
 	expect := []string{"hello", "foo/bar"}
 	if !reflect.DeepEqual(got, expect) {
-		t.Errorf("Test %d failed. Expected %q but got %q", expect, got)
+		t.Errorf("Expected %q but got %q", expect, got)
 	}
 }