Short hashes are not guaranteed to be unambiguous forever and could
collide if the repo grows over time. Git also estimates how many
characters are roughly required to prevent such a collision and slowly
increases the amount of characters beginning from 6, OpenWrt is already
at 8. Lets use the full hash the have a predictable length and keep
hashes unambiguous forever.
Signed-off-by: Sandro Jäckel <sandro.jaeckel@gmail.com>
376f1c80a9