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-rw-r--r--thread.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/thread.c b/thread.c
index cb2bd89..7ecc535 100644
--- a/thread.c
+++ b/thread.c
@@ -5128,7 +5128,7 @@ rb_exec_recursive_paired_outer(VALUE (*func) (VALUE, VALUE, int), VALUE obj, VAL
/*
* call-seq:
- * thread.backtrace -> array
+ * thread.backtrace -> array or nil
*
* Returns the current backtrace of the target thread.
*