.mailmap: fix screw-ups in Uwe's name

Signed-off-by: Junio C Hamano <junkio@cox.net>

.mailmap

@@ -30,7 +30,9 @@ Robert Fitzsimons <robfitz@273k.net>
 Santi Béjar <sbejar@gmail.com>
 Sean Estabrooks <seanlkml@sympatico.ca>
 Shawn O. Pearce <spearce@spearce.org>
+Theodore Ts'o <tytso@mit.edu>
 Tony Luck <tony.luck@intel.com>
+Uwe Kleine-König <zeisberg@informatik.uni-freiburg.de>
 Ville Skyttä <scop@xemacs.org>
 YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
 anonymous <linux@horizon.com>