While looking at the ath25 build breakage of 19.07 images today I've
encountered following error:
mkfwimage -B XS5 -v [...] ath25-ubnt5-squashfs-sysupgrade.bin.new
ERROR: Failed creating firmware layout description - error code: -2
Which is barely human readable and needs poking into the source code, so
this patch makes the error more verbose and usable by mere mortals.
Signed-off-by: Petr Štetiar <ynezz@true.cz>
9401780c2c