it causes problems with others sending patches etc..
We can't get this 100% hermetic anyhow, due to files like lt~obsolete.m4,
so we can just as well go cleanly in the other direction.
R=csilvers
DELTA=21038 (0 added, 21036 deleted, 2 changed)
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git-svn-id: https://snappy.googlecode.com/svn/trunk@14 03e5f5b5-db94-4691-08a0-1a8bf15f6143