Before recoding a variable's name, check that it
authorJohn Darrington <john@darrington.wattle.id.au>
Sat, 18 Jul 2009 09:32:46 +0000 (11:32 +0200)
committerJohn Darrington <john@darrington.wattle.id.au>
Sat, 18 Jul 2009 09:32:46 +0000 (11:32 +0200)
doesn't clash with an existing one.

Thanks to Ben Pfaff for pointing out this potential
problem.


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