Issue 121 in svnbook: 1.7 change: copy-on-update code removed

[svnbook at googlecode.com]

Updates:
	Status: Fixed

Comment #2 on issue 121 by cmpil... at gmail.com: 1.7 change: copy-on-update  
code removed
http://code.google.com/p/svnbook/issues/detail?id=121

r4059 reworks the chapter 2 example to not depend on Subversion being  
smarter than it truly is in 1.7.  I think this was the only reference to  
the copy-on-update stuff.