Convert some tab stops into spaces.

llvm-svn: 108130
diff --git a/llvm/tools/bugpoint/ListReducer.h b/llvm/tools/bugpoint/ListReducer.h
index 5e9cff0..bd1c5da 100644
--- a/llvm/tools/bugpoint/ListReducer.h
+++ b/llvm/tools/bugpoint/ListReducer.h
@@ -183,8 +183,8 @@
             --i;  // Don't skip an element of the list
             Changed = true;
           }
-	  if (!Error.empty())
-	    return true;
+          if (!Error.empty())
+            return true;
         }
         // This can take a long time if left uncontrolled.  For now, don't
         // iterate.