fix doc.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@15734 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 1 deletions

diff --git a/bignum.c b/bignum.c
index 0c31b8c89c..1f38816f6d 100644
--- a/bignum.c
+++ b/bignum.c
@@ -2001,7 +2001,7 @@ bigsqr(VALUE x)
 
 /*
  *  call-seq:
- *     big ** exponent   #=> numeric
+ *     big ** exponent   => numeric
  *
  *  Raises _big_ to the _exponent_ power (which may be an integer, float,
  *  or anything that will coerce to a number). The result may be