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given/when/default syntax design hides typos

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From:
Chip Salzenberg
Date:
July 29, 2010 17:09
Subject:
given/when/default syntax design hides typos
Message ID:
4C521813.4010604@pobox.com
$ perl -c -e 'use 5.10.0; given(1) { defalut { print "boo" } }'
< no error>

Probably not much can be done about really fixing this, but a carefully 
crafted warning might be possible.
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