internal/pkg: expose cure whence

Useful for cure determinism validation of KindExec.

Signed-off-by: Ophestra <cat@gensokyo.uk>

internal/pkg/tar_test.go

@@ -212,24 +212,24 @@ func checkTarHTTP(
 			&client,
 			"file:///testdata",
 			testdataChecksum,
-		), pkg.Gzip)), ignorePathname, want, nil},
+		), pkg.Gzip)), ignorePathname, want, pkg.WNew, nil},
 
 		{"directory", pkg.NewTar(pkg.NewDecompress(
 			&tarDir,
 			pkg.Gzip,
-		)), ignorePathname, want, nil},
+		)), ignorePathname, want, pkg.WNew, nil},
 
 		{"multiple entries", pkg.NewTar(pkg.NewDecompress(
 			&tarDirMulti,
 			pkg.Gzip,
-		)), nil, nil, errors.New(
+		)), nil, nil, pkg.WNew, errors.New(
 			"input directory does not contain a single regular file",
 		)},
 
 		{"bad type", pkg.NewTar(pkg.NewDecompress(
 			&tarDirType,
 			pkg.Gzip,
-		)), nil, nil, errors.New(
+		)), nil, nil, pkg.WNew, errors.New(
 			"input directory does not contain a single regular file",
 		)},
 
@@ -239,6 +239,6 @@ func checkTarHTTP(
 			cure: func(t *pkg.TContext) error {
 				return stub.UniqueError(0xcafe)
 			},
-		}), nil, nil, stub.UniqueError(0xcafe)},
+		}), nil, nil, pkg.WNew, stub.UniqueError(0xcafe)},
 	})
 }