Implement SysV-style $$@ support. I looked at E.Parmelan's patch but
commitf90ac25bce9ef53a76345a65f8ec052a8e49126b
authorpsmith <psmith>
Wed, 10 Jul 2002 12:59:07 +0000 (10 12:59 +0000)
committerpsmith <psmith>
Wed, 10 Jul 2002 12:59:07 +0000 (10 12:59 +0000)
tree10ed071101860f92794e8118cab3cd8a4f6be7dd
parentd72a509f39ca6c65822c2acdf53a9f657888b178
Implement SysV-style $$@ support.  I looked at E.Parmelan's patch but
decided to implement this a different way, and didn't use it.
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