Don't try to utime an open file

6407f65 changed to using File::Temp to create the temp file
for this test, which implicitly opens it for exclusive access on
VMS and prevents the ability to call utime on it. The filehandle
is not used so just close it.

t/utime.t

@@ -8,6 +8,7 @@ use autodie;
 use File::Temp qw(tempfile);
 
 my ($fh, $filename) = tempfile;
+close $fh; # may not be able to utime an open file
 
 eval { utime(undef, undef, NO_SUCH_FILE); };
 isa_ok($@, 'autodie::exception', 'exception thrown for utime');