RFR: 8241885: JFR tool: print does not work with inner class events

[Erik Gahlin]

Hi,

Could I have a review of a fix that updates the documentation for the ‘jfr’-tool so that the filter expressions in the examples uses single quotes, unless the operating system is Windows.

Problem is that he separator for inner classes ($) is interpolated by bash if double quotes are used.

Bug:
https://bugs.openjdk.java.net/browse/JDK-8241885

Webrev:
http://cr.openjdk.java.net/~egahlin/8241885/

Testing: jdk/jdk/jfr + manual check of output on Mac and Windows.

Thanks
Erik