Fix credits.

AUTHORS

@@ -39,5 +39,5 @@ Jordi Mallach <jordi@debian.org> -- do not error when no jobs are configured
 Jacob Anawalt <jlanawalt@gmail.com> -- pg_dump format option
 Sergio Talens-Oliag <sto@debian.org> -- pipefail fixes
 Bruno Bigras <bigras.bruno@gmail.com> -- enable tar handler in the build system
-casper -- Allow 'when = XXX' with spaces in .sh files.
+aihtdikh -- Allow 'when = XXX' with spaces in .sh files.
 Chris Lamb <lamby@debian.org> -- rdiff.helper bugfix

ChangeLog

@@ -12,7 +12,7 @@ version 0.9.10 -- UNRELEASED
 	   (Closes: #639545)
 	sh:
 	 . Allow 'when = XXX' with spaces (Redmine#2769).
-	   Thanks to casper for the patch.
+	   Thanks to aihtdikh for the patch.
     helper changes:
 	rdiff:
 	 . Fix infinite loop when version inconsistency is detected.