Added email address of tester.

unsupported/nikon-ls50-ed.html

@@ -34,7 +34,8 @@
     </p>
     <h2>Comments</h2>
     <p>
-      Maybe it can be supported by the coolscan2 backend?
+      Maybe it can be supported by the coolscan2 backend? "garcia _AT_ iwr fzk
+      de" offers to help testing that scanner.
     </p>
     <h2>Output of /proc/bus/usb/devices or sane-find-scanner -v -v</h2>
     <pre>