cont.c: fix comment to follow field name change

saved_thread was renamed to saved_ec in r59831 [ci skip]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61475 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 1 deletions

diff --git a/cont.c b/cont.c
index 6e8f95de54..257bbee33a 100644
--- a/cont.c
+++ b/cont.c
@@ -528,7 +528,7 @@ cont_save_thread(rb_context_t *cont, rb_thread_t *th)
     /* save thread context */
     *sec = *th->ec;
 
-    /* saved_thread->machine.stack_end should be NULL */
+    /* saved_ec->machine.stack_end should be NULL */
     /* because it may happen GC afterward */
     sec->machine.stack_end = NULL;