a:4:{s:15:"microtime_start";d:1447879376.8849919;s:6:"client";s:4:"lyne";s:4:"name";s:5:" Lyne";s:4:"mail";s:17:"krill_fh@yahoo.fr";}* function handle_usermod_after
 --- BEFORE --- | --- AFTER ---
lyne <= ? => lyne
 Lyne <= ? =>  Lyne
krill_fh@yahoo.fr <= ? => krill_fh@yahoo.fr


NO diff in mail => do nothing