* expand tabs.

gc.c

@@ -2965,14 +2965,14 @@ should_not_capture_callback(VALUE child, void *dp)
 {
     struct should_not_capture_data *data = dp;
     if (child == data->obj)
-	data->found = true;
+        data->found = true;
 
     if (data->found)
-	return;
+        return;
 
     // Maintain a set of objects already searched, so that we don't follow a cycle
     if (rb_hash_lookup2(data->set, child, Qfalse))
-	return;
+        return;
     rb_hash_aset(data->set, child, Qtrue);
 
     rb_objspace_reachable_objects_from(child, should_not_capture_callback, data);
@@ -2986,7 +2986,7 @@ should_not_capture(VALUE block, VALUE obj)
     rb_objspace_reachable_objects_from(block, should_not_capture_callback, &data);
     rb_hash_clear(data.set);
     if (data.found)
-	rb_warn("object is reachable from finalizer - it may never be run");
+        rb_warn("object is reachable from finalizer - it may never be run");
 }
 
 /*
@@ -3019,7 +3019,7 @@ define_final(int argc, VALUE *argv, VALUE os)
     }
 
     if (RTEST(ruby_verbose)) {
-	should_not_capture(block, obj);
+        should_not_capture(block, obj);
     }
 
     return define_final0(obj, block);