Update COPYING

Trying to fix the tab at #1. (It's not visible at edit--deleted the blank space and put in a space.

COPYING

@@ -14,7 +14,7 @@ Redistribution and use in source and binary forms, with or without
 modification, are permitted for any purpose (including commercial purposes)
 provided that the following conditions are met:
 
-1.	Redistributions of source code must retain the above copyright notice, 
+1. Redistributions of source code must retain the above copyright notice, 
    this list of conditions, and the following disclaimer.
 
 2. Redistributions in binary form must reproduce the above copyright notice,