parseDistinguishedName() only escapes the first instance of '\\,'

[christianpesantestorres]

The function parseDistinguishedName(dn) returns dn.replace('\\,', '\\\\,') but when the first argument for replace is a string (like in this scenario), only the first instance of said string is replaced. (source)

Thus, when dn has multiple instances of \\, then dn will not be properly escaped and some functions may not behave as expected. I ran into this issue when getGroupMembershipForUser() would return an empty array but no errors.

A potential solution would be to replace the return with something like: return(dn.split('\\,').join('\\\\,'));. So far this has been working for me, but please let me know if I'm missing anything. I will create a PR for this soon. Thanks!