merges r20304 from trunk into ruby_1_9_1.

* file.c (rb_file_world_writable_p): should return nil for non
  world-writable files.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_1@20328 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 1 deletions

diff --git a/file.c b/file.c
index 21f74f0129..aa814a5c76 100644
--- a/file.c
+++ b/file.c
@@ -1299,7 +1299,7 @@ rb_file_world_writable_p(VALUE obj, VALUE fname)
 #ifdef S_IWOTH
     struct stat st;
 
-    if (rb_stat(fname, &st) < 0) return Qfalse;
+    if (rb_stat(fname, &st) < 0) return Qnil;
     if ((st.st_mode & (S_IWOTH)) == S_IWOTH) {
 	return UINT2NUM(st.st_mode & (S_IRUGO|S_IWUGO|S_IXUGO));
     }