RFR: JDK-8241768 git needs .gitattributes

Thu Sep 3 15:49:12 UTC 2020

This is an old bug that was opened long time ago, but with a much better 
solution for the "autocrlf" problem. Erik and I have agreed that using 
"-text" as attribute for all files is the best solution to mimic the old 
mercurial behavior. In the future, we might reconsider this, but then 
our files and tooling need to be adapted.

Bug: https://bugs.openjdk.java.net/browse/JDK-8241768
WebRev: http://cr.openjdk.java.net/~ihse/JDK-8241768-gitattributes/webrev.01

/Magnus