fix utime() to set $!/errno when called on a closed handle

My 8334cae65 was intended to fix this, but the test was faulty, and
didn't correctly fail.

This started showing as a failure on cygwin, with the fixed test it
also fails on Linux, so fix doio.c as well.

1 files changed, 1 insertions, 0 deletions

diff --git a/doio.c b/doio.c
index baca499d10..76f2e0e84b 100644
--- a/doio.c
+++ b/doio.c
@@ -2766,6 +2766,7 @@ nothing in the core.
 #endif
                     }
                     else {
+                        SETERRNO(EBADF,RMS_IFI);
                         tot--;
                     }
                 }