Add a space in dynamic_18 format name

Changing
	md5($s.Y.$p.0xF7.$s)(Post.Office MD5)
into
	md5($s.Y.$p.0xF7.$s) (Post.Office MD5)

All other formats with algorithm names using multiple expressions
in parentheses have a single space character between the
right parenthesis of the previous expression and the left parenthesis
of the next expression.