js-beautify: update expected error message
js-beautify: update expected error message

jsbeautifier/tests/shell-smoke-test.sh expected the specific error
message from the usage().  As the message was changed, test's
expectation needs to be changed as well.

beautify-web/js-beautify,beautify-web/js-beautify,beautify-web/js-beautify,bitwiseman/js-beautify,bitwiseman/js-beautify,beautify-web/js-beautify,bitwiseman/js-beautify,bitwiseman/js-beautify