vsnprintf.c: fix string precision
memchr
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@46098 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
vsnprintf.c: fix string precision
given. as the result of
memchr
is NULL or its offset from thestart cannot exceed the size, the comparison was always false.
[ruby-core:62737] [Bug #9861]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@46098 b2dd03c8-39d4-4d8f-98ff-823fe69b080e