* bignum.c (bary_mul): x*1 is x.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41869 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* 2013-07-10

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41870 b2dd03c8-39d4-4d8f-98ff-823fe69b080e