RFR 8215398: -Xlog option usage => Invalid decorator '\temp\app_cds.log'.

[Harold David Seigel]

Hi,

Please review this small change to fix JDK-8215398.  The fix works by 
not treating ':' as a delimiter in a -Xlog... option string if it is 
following by a '\' and preceded by either a single character or the text 
'file='.  The fix is for Windows only.

Open Webrev: 
http://cr.openjdk.java.net/~hseigel/bug_8215398/webrev/index.html

JBS Bug:  https://bugs.openjdk.java.net/browse/JDK-8215398

The fix was regression tested by running Mach5 tiers 1 and 2 tests and 
builds on Linux-x64, Windows, and Mac OS X, running tiers 3-5 tests on 
Linux-x64, running JCK-12 Lang and VM tests on Linux-x64, and by hand on 
Windows.

Thanks, Harol