gentree: fix Makefile symbol disabling

Upstream commit: 4645e84f83e0fff9fe771c3a3656fcbb9ba729fa

Currently, a Makefile line like this:

    obj-$(CONFIG_IPW2100) += ipw2x00/

will get mangled into

    #obj-$(CONFIG_IPW2100+= ipw2x00/

when disabled by the gentree script. Fix the regular
expression to contain the entire match as the first
group, so it gets all preserved when replaced later
by "#\1" using expression.sub().

This then makes it come out as

    #obj-$(CONFIG_IPW2100) += ipw2x00/

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>

0 files changed, 0 insertions, 0 deletions