sapi_add_header_ex() violating CODING_STANDARDS

Hi list.

I don't think this is the right place to talk about this,
but writing PHP extensions I found that "sapi_add_header_ex()" in SAPI.c
is violating a law of PHP CODING_STANDARDS, which says

"[1] Functions that are given pointers to resources should not free them
*snip*
Exceptions:
- The function's designated behavior is freeing that resource. E.g. efree()
- The function is given a boolean argument, that controls whether or not
the function may free its arguments (if true - the function must free its
arguments, if false - it must not)
*snip*
"

Take a look at the source and you'll see the following code

if (!duplicate)
efree(header_line);

not so intuitive.

Is this a bug?
.

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