[ci skip] compiler: Kill last remaining tabs in CallArity

Signed-off-by: Austin Seipp <austin@well-typed.com>

compiler/simplCore/CallArity.hs

@@ -24,9 +24,9 @@ import Control.Arrow ( first, second )
 
 {-
 %************************************************************************
-%*									*
+%*                                                                      *
               Call Arity Analyis
-%*									*
+%*                                                                      *
 %************************************************************************
 
 Note [Call Arity: The goal]