Use a given name in the bug5090 message, at its holder's request.

changes/bug5090

@@ -2,6 +2,6 @@
     - Detect and reject certain misformed escape sequences in configuration
       values. Previously, these values would cause us to crash if received
       in a torrc file or over an (authenticated) control port. Bug found by
-      Esteban Manchado Velázquez. Patch by "flupzor." Fix for bug 5090;
-      bugfix on 0.2.0.16-alpha.
-      
+      Esteban Manchado Velázquez. Patch by Alexander Schrijver. Fix for
+      bug 5090; bugfix on 0.2.0.16-alpha.
+