[m-rev.] for review: announce that editline may be used in place of readline

[Julien Fischer]

For review by anyone.

Announce that editline may be used in place of readline.

NEWS:
    As above.

Julien.

diff --git a/NEWS b/NEWS
index c13728a..2fd84cb 100644
--- a/NEWS
+++ b/NEWS
@@ -1227,6 +1227,9 @@ Portability improvements

    See README.AIX for further details.

+* The NetBSD `editline` library may now be used in place of GNU `readline` to
+  provide line editing capabilities in the debugger.
+
  * [Mantis bug #357]. We now use the `libdispatch` implementation of semaphores
    on OS X as the POSIX one was a non-functional stub.