internetarchive/heritrix3 — pull request #52 by nlevitt (2014-03-18 01:12:44+00:00)
Title: Implicitly add the ${} around groovyExpression. When cxml contains ${}, ...

...it fights with spring's PropertyPlaceholderConfigurer (if enabled); and since what we're interested in is an expression, not a template for producing a string, it's more appropriate to leave it out anyway.