gc.c: fix typo

* gc.c (gcdebug_sentinel): fix typo, "sentinel" not "sential".
  [fix GH-634]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@46386 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,8 @@
+Mon Jun  9 16:01:41 2014  Masahiro Ide  <imasahiro9@gmail.com>
+
+	* gc.c (gcdebug_sentinel): fix typo, "sentinel" not "sential".
+	  [fix GH-634]
+
 Mon Jun  9 00:04:25 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* configure.in (posix_fadvise): disable use of posix_fadvise

gc.c

@@ -7650,7 +7650,7 @@ rb_gcdebug_print_obj_condition(VALUE obj)
 }
 
 static VALUE
-gcdebug_sential(VALUE obj, VALUE name)
+gcdebug_sentinel(VALUE obj, VALUE name)
 {
     fprintf(stderr, "WARNING: object %s(%p) is inadvertently collected\n", (char *)name, (void *)obj);
     return Qnil;
@@ -7659,7 +7659,7 @@ gcdebug_sential(VALUE obj, VALUE name)
 void
 rb_gcdebug_sentinel(VALUE obj, const char *name)
 {
-    rb_define_finalizer(obj, rb_proc_new(gcdebug_sential, (VALUE)name));
+    rb_define_finalizer(obj, rb_proc_new(gcdebug_sentinel, (VALUE)name));
 }
 #endif /* GC_DEBUG */