banish some warnings.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@9292 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 1 deletions

diff --git a/io.c b/io.c
index b335eae750..8b369ae133 100644
--- a/io.c
+++ b/io.c
@@ -1079,7 +1079,7 @@ static VALUE
 rb_io_inspect(VALUE obj)
 {
     OpenFile *fptr;
-    char *buf, *cname, *st = "";
+    char *cname, *st = "";
 
     fptr = RFILE(rb_io_taint_check(obj))->fptr;
     if (!fptr || !fptr->path) return rb_any_to_s(obj);