bugfix: replace_str uses string_extend incorrectly.

One test case for this is that (append "ABC" "DEF")
returns an "ABCDEF" string whose length reports as 9
instead of the correct 6. This will wreak various havoc.

The bug was introduced in the very first version of
replace_str, in commit d011fda9b6b078f09027eb65d500c8beffc99414
on January 26, 2012.

In the same commit, the string_extend behavior is
introduced of supporting an integer value specifying the
number of characters by which to extend the string.
This feature of string_extend is used in replace_str,
but wrongly.

* lib.c (replace_str): Pass just the size delta
to string_extend; do not add the old length to the
delta such that the total size is wrongly passed.

0 files changed, 0 insertions, 0 deletions