tweaks: use spaces for alignment also in the THANKS file

THANKS

@@ -90,7 +90,7 @@ Jim Knoble <jmknoble@pobox.com>			Pico compat for browser
 Ryan Krebs <fluffy@highwire.stanford.edu>      Many bug fixes and testing
 Roy Lanek <lanek@ranahminang.net>              Advice and advocacy
 Chuck Mead <csm@MoonGroup.com>                 Feedback and RPM stuff
-Mike Melanson <melanson@pcisys.net>		Bugs
+Mike Melanson <melanson@pcisys.net>            Bug reports
 Neil Parks <nparks@acsmail.com>                Bug reports and fixes
 Jeremy Robichaud <robicj@yahoo.com>            Beta tester
 Bill Soudan <wes0472@rit.edu>                  Regex code, etc