By default acme.sh uses the '*' character in the filename for wildcard.
That can be confusing within HAProxy since the * character in front of a
filename in the stat socket is used to specified an uncommitted
transaction.
This patch replace the '*' by a '_' in the filename.
This is only done when using the default filename, the name can still be
forced with an asterisk.
William Lallemand
e09d45c844