[Dovecot] typo caused dovecot-acl line 1: Unknown ACL ' '

[Adam McDougall]

A co-worker edited a dovecot-acl file and accidently introduced a space 
at the end of a "user=username lrwstie"
entry.  Fortunately he noticed errors in his own mail client, but I'm 
not sure what may have happened to other users.
Would it be possible to make dovecot more forgiving by ignoring 
whitespace at the end of ACLS to avoid this issue? 

Feb 21 12:34:38 hill dovecot: IMAP(username): ACL file 
/path/namespace/.folder/dovecot-acl line 1: Unknown ACL ' '