backup~ files in svn sandbox on Raspbian

[Adam Funk]

To the best of my recollection, on every other *n*x system I've used,
emacs automatically refrains from making backup files ending with '~'`q
when editing files inside a subversion sandbox.  But on Raspbian
wheezy, I see "SVN-1106" (example) in the information bar but emacs
still leaves the ~ files there.  I have no idea how to disable the
backup files in svn sandboxes, because for me it has always been the
default behavior.  Any suggestions?

Thanks.


version = GNU Emacs 23.4.1 (arm-unknown-linux-gnueabihf, GTK+ Version
2.24.10) of 2012-09-13 on build03.raspbian.lan, modified by Debian