Fix version processing on BSD systems.
BSD systems ship with the original sed; lacking a host of GNU extensions. However both GNU sed and POSIX sed support the -E flag for extended regular expressions which are close to the change this is replacing. See the descriptions of extended REs in IEEE Std 1003.2 (aka POSIX.2) or re_format(7) on BSD systems. What matters for this is that the + operator works and that it and the grouping operators no longer need to be escaped.
Please register or sign in to comment