username = User's Full Name <email@addr.es>+
From: Junio C Hamano
+ Read a file with lines on the form +
+username = User's Full Name <email@addr.es>+
and use "User's Full Name <email@addr.es>" as the GIT +author and committer for Subversion commits made by +"username". If encountering a commit made by a user not in the +list, abort.+