* gc.c: Document require name for ObjectSpace methods.

  [ci skip][fix GH-860] Patch by @schneems

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@50258 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 2 insertions, 0 deletions

diff --git a/gc.c b/gc.c
index a516de630b..f311501646 100644
--- a/gc.c
+++ b/gc.c
@@ -8966,6 +8966,8 @@ rb_gcdebug_sentinel(VALUE obj, const char *name)
  *  called when a specific object is about to be destroyed by garbage
  *  collection.
  *
+ *     require 'objspace'
+ *
  *     a = "A"
  *     b = "B"
  *