RFR: 8215452: Logged repo location is wrong when using delayed recording start

[Erik Gahlin]

Hi,

Could I have a review of a fix that changes the logging of the 
repository location. This happens after Flight Recorder is initialized.

Bug:
https://bugs.openjdk.java.net/browse/JDK-8215452

Webrev:
http://cr.openjdk.java.net/~egahlin/8215452/

Testing:
test/jdk/jdk/jfr

Thanks
Erik