}

	if argLen > sys.ExecArgLengthLimit {
		return true
	}

	// On the Go build system, use response files about 10% of the
	// time, just to exercise this codepath.
	isBuilder := os.Getenv("GO_BUILDER_NAME") != ""
	if isBuilder && rand.Intn(10) == 0 {
		return true
	}

	return false
}

// encodeArg encodes an argument for response file writing.
func encodeArg(arg string) string {

            }
            Site.Builder sbuilder = Site.newBuilder(tgt);
            if (sourceDominant || tgt == null || isSiteEmpty(tgt)) {
                mergeSite(sbuilder, tgt, src, sourceDominant, context);
            }
            super.mergeSite_ChildSiteUrlInheritAppendPath(sbuilder, tgt, src, sourceDominant, context);
            builder.site(sbuilder.build());
        }
    }

    @Override