[DOC] Add `or nil` to call-seq [ci skip]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66695 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 1 deletions

diff --git a/complex.c b/complex.c
index c9048409a1..eb0435bed1 100644
--- a/complex.c
+++ b/complex.c
@@ -419,7 +419,7 @@ static VALUE nucomp_s_convert(int argc, VALUE *argv, VALUE klass);
 
 /*
  * call-seq:
- *    Complex(x[, y], exception: false)  ->  numeric
+ *    Complex(x[, y], exception: false)  ->  numeric or nil
  *
  * Returns x+i*y;
  *