ifconfig has tons of problems and its use should be discouraged in favor of iproute2.
we're working on that :)
The patch serves as means to identify remaining programs requiring checking and its inclusion, I would say, not be "help up" by any related work. It helps to flag up programs that still require attention, but first and foremost it is meant to inform users.
Oh, sorry I missed the patch at first. But it is not a good idea to inject text on standard output, since these tools are usually used inside scripts..
If need be, the printing to stdout can be changed to stderr. Not that grepping in ifconfig output was reliable in the first place (due to localization, you name it)...
So, is this being completely ignored?