[EDITORIAL] Example uses File; text describes FileInputStream

[ericprud]

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1. p 11 has a

CompilationUnit cu = StaticJavaParser.parse(new File(FILE_PATH));

... p 12 describes that invokcation as the StaticJavaParser taking a FileInputStream (which you don't have to close). ... I think the example changed from a FileInputStream to a File without the description changing.