Add the value of javac and java to help debug

[trajano]

[trajano]

In relation to https://github.com/renpy/renpy/issues/1919

the error I got after putting this in is

I was unable to use javac ("c:\Program Files\Java\jdk1.8.0_211"\bin\javac.exe) to compile a test file. If you haven't installed the Java Development Kit yet, please download it from:

So it seems to get confused with quotes in the path.

[renpytom]

To be merged in, this requires a corresponding patch to Ren'Py to change the various translations of this string to match the new pattern.

I don't think the quotes thing is a real issue - the quotes shouldn't be there.