K 10
svn:author
V 6
obrien
K 8
svn:date
V 27
2002-04-13T19:36:47.000000Z
K 7
svn:log
V 413
Revision 1.17 seems to break a subsequent buildworld (i.e. with the new
make installed) in gnu/usr.bin/groff/src/preproc/eqn (which, being a
build tool itself, is built with the original make during buildworld).

The problem seems to be that in str_concat(), the string is not
terminated when the length of the second string is 0.
This apparently can happen during null suffix rule processing.

Submitted by:	tmm

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