* file.c (rb_file_chown): should accept nil. [ruby-dev:27171] (backport from trunk, rev 1.208)

git-svn-id: http://svn.ruby-lang.org/repos/ruby/branches/ruby_1_8@9233 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 2 insertions, 2 deletions

diff --git a/file.c b/file.c
index 0f35ec074..c6e7b349e 100644
--- a/file.c
+++ b/file.c
@@ -1747,8 +1747,8 @@ rb_file_chown(obj, owner, group)
     int o, g;
 
     rb_secure(2);
-    o = NUM2INT(owner);
-    g = NUM2INT(group);
+    o = NIL_P(owner) ? -1 : NUM2INT(owner);
+    g = NIL_P(group) ? -1 : NUM2INT(group);
     GetOpenFile(obj, fptr);
 #if defined(DJGPP) || defined(__CYGWIN32__) || defined(_WIN32) || defined(__EMX__)
     if (!fptr->path) return Qnil;