When building from a local branch based off the "openwrt-18.06" branch,
version computation is wrong, for instance:
r6907+1154-7e15e21766
The number of local commits (1154 in this case) is wrong because it is
computed against master. As a result, it wrongly counts *all* commits
since the beginning of the openwrt-18.06 branch as local commits.
The fix is to compare to the openwrt-18.06 branch instead, which gives the
expected result such as:
r8060+1-1238a22316
Signed-off-by: Baptiste Jonglez <git@bitsofnetworks.org>
[shorten commit title]
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
6d94a6eca4