old vs new G clefs

[Tim Reeves]

I was trying to see what changes in 2.13.27  when I discovered that 
somewhere in 2.13 this happened:

The LilyPond G clef has been rotated 1.5 degrees clockwise for improved 
balance. The old and new versions can be compared by looking at the 
documentation: old version, new version. 

But this doesn't let me see both at the same time.  Is there an easy way 
to see them both on one page for comparison without installing an older 
version alongside the new.
Also, the page doesn't tell me what X is (in 2.13.x) where the change 
occurs, only that it occurs in 2.13 somewhere between 2.13.0 and 2.13.27. 
Any way to find out exactly where the change occurred?


Thanks,
Tim Reeves