usa	2018-05-21 03:09:36 +0900 (Mon, 21 May 2018)

  New Revision: 63469

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=63469

  Log:
    get rid of unused variable warning.

  Modified files:
    trunk/gc.c
Index: gc.c
===================================================================
--- gc.c	(revision 63468)
+++ gc.c	(revision 63469)
@@ -3797,7 +3797,7 @@ gc_sweep(rb_objspace_t *objspace) https://github.com/ruby/ruby/blob/trunk/gc.c#L3797
 #endif
     }
     else {
-	struct heap_page *page;
+	struct heap_page *page = NULL;
 	gc_sweep_start(objspace);
 
         list_for_each(&heap_eden->pages, page, page_node) {

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