hg: jigsaw/m2/langtools: fix remaining Windows test failures

[jonathan.gibbons at oracle.com]

Changeset: 860057639029
Author:    jjg
Date:      2014-11-25 15:00 -0800
URL:       http://hg.openjdk.java.net/jigsaw/m2/langtools/rev/860057639029

fix remaining Windows test failures

! src/jdk.compiler/share/classes/com/sun/tools/javap/JavapTask.java
! test/tools/javac/Paths/Diagnostics.sh
! test/tools/javac/Paths/MineField.sh
! test/tools/javac/Paths/Util.sh
! test/tools/javac/T6725036.java
! test/tools/sjavac/OptionDecoding.java