fish: docs: note how to clean up the remote process properly.

Killing it is always a bad idea, because the qemu subprocess will be
left hanging around.  The best thing is to send the exit command.

Cherry picked from commit 11be7d8eee16e6249ed2868b5bd552f29508ec02
and modified.

diff --git a/fish/guestfish.pod b/fish/guestfish.pod
index c09dffc..21b264a 100644 (file)
--- a/fish/guestfish.pod
+++ b/fish/guestfish.pod
@@ -996,14 +996,15 @@ and cleans up guestfish when the script exits:
      exit 1
  fi
  
- kill_guestfish ()
+ cleanup_guestfish ()
  {
-     kill $GUESTFISH_PID >/dev/null 2>&1 ||:
+     guestfish --remote -- exit >/dev/null 2>&1 ||:
  }
- trap kill_guestfish EXIT
+ trap cleanup_guestfish EXIT ERR
  
- guestfish --remote run
- # etc.
+ guestfish --remote -- run
+ 
+ # ...
 
 =head2 REMOTE CONTROL RUN COMMAND HANGING