[sr-dev] Dialplan docs

[Olle E. Johansson]

dpid: 1
pr: 1
match_op: 1
match_exp: ^0([1-9][0-9]+)$
match_len: 0
subst_exp: ^0([1-9][0-9]+)$
repl_exp: 0049\1
attrs: de
.

This is the example we have in the dialplan documentation. I wonder why we have "(" and ")" in the match_exp. It makes sense in 
the subst_exp - but I still wonder about the match_exp.

If there's no use of it I would like to simplify the example.

/O