Change the method name "getIndenting" to "isIndent"

[ShangwenWang]

First, this method returns a boolean value by checking whether the indentation is specified or not. It would be better to name it "is XXX" to follow the Java naming convention. Second, above the method, there is another method named "getIndent". Hence, to keep consistent with this method, it would be better to name this one "isIndent".