Escape Windows Environment Variables

In a windows environment the environment variables are resolved on displaying the help. This makes (e.g. for the PATH) the help less readable.

j7 = set JAVA_HOME="D:\java\edition\jdk1.7.0" ;; set PATH=D:\java\edition\jdk1
.7.0\bin;C:\Windows\system32;C:\Windows; ...
...
...

Therefore the variables have to be escaped like this:

j7 = set JAVA_HOME="JAVA_HOME_7";; set PATH=JAVA_HOME_7\bin;PATH