/etc/config bug on a SUN-100??

[keenan at inmet.UUCP]

A similar problem lies with the parser used by expr(1). Most versions of
expr have a length operator used thusly:
              expr length <string>
However the string must not be any of the other expr operators. For example:
              expr length length
gives a syntax error. The problem is that the scanner knows about the
keywords and returns the token instead of the string.

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