Corrected document directive to "call-seq"
@@ -559,7 +559,7 @@ mrb_struct_equal(mrb_state *mrb, mrb_value s)
/* 15.2.18.4.12(x) */
/*
- * code-seq:
+ * call-seq:
* struct.eql?(other) -> true or false
*
* Two structures are equal if they are the same object, or if all their
