Window ant.bat out of hell

[Kelly O'Hair]

Recent javac.debuglevel changes to the OpenJDK7 jdk7/build forest
have run smack into the ant windows issue regarding commas in
command lines:
    https://issues.apache.org/bugzilla/show_bug.cgi?id=46561

Not all windows users run into this, it depends on whether the
bin/ant.bat startup script is used (sh version is fine).

I've prepared a webrev for the jaxp and jaxws repositories to
just remove the use of javac.debuglevel:
   http://cr.openjdk.java.net/~ohair/6837665-ant-debuglevel/webrev/

Andrew will likely have a webrev or diff for the langtools
repository soon.

So you windows users out there watch out, this will probably not
work:
    ant -Djavac.debuglevel=source,lines,vars

And may also return a process exit code of 0 after it says
"BUILD FAILED" :^(

-kto