From: Nick Bo <bornemann1@...>
Date: 2008-09-29T10:04:58+09:00
Subject: string#sub all instances of pattern???

eg: str = "a b c d"
newStr = str.sub(" ", ", ")

gives me output a, b c d

what i want is a, b, c, d

ow do i make this happen sub isnt doing it for me i guess.  I been
looking all through the ruby-doc to no avail.
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