Add --reorder flag.

pkg/commands/build/reorderoutput_string.go

@@ -0,0 +1,25 @@
+// Code generated by "stringer -type=reorderOutput"; DO NOT EDIT.
+
+package build
+
+import "strconv"
+
+func _() {
+	// An "invalid array index" compiler error signifies that the constant values have changed.
+	// Re-run the stringer command to generate them again.
+	var x [1]struct{}
+	_ = x[unspecified-0]
+	_ = x[none-1]
+	_ = x[legacy-2]
+}
+
+const _reorderOutput_name = "unspecifiednonelegacy"
+
+var _reorderOutput_index = [...]uint8{0, 11, 15, 21}
+
+func (i reorderOutput) String() string {
+	if i < 0 || i >= reorderOutput(len(_reorderOutput_index)-1) {
+		return "reorderOutput(" + strconv.FormatInt(int64(i), 10) + ")"
+	}
+	return _reorderOutput_name[_reorderOutput_index[i]:_reorderOutput_index[i+1]]
+}