Update to readline-8.2.13.

ports/libreadline/libreadline.patch

@@ -23,18 +23,6 @@ diff -Paur --no-dereference -- libreadline.upstream/configure libreadline/config
      esac
      if test -n "${cross_cache}" && test -r "${cross_cache}"; then
          echo "loading cross-build cache file ${cross_cache}"
-diff -Paur --no-dereference -- libreadline.upstream/input.c libreadline/input.c
---- libreadline.upstream/input.c
-+++ libreadline/input.c
-@@ -805,7 +805,7 @@
-   int result;
-   unsigned char c;
-   int fd;
--#if defined (HAVE_PSELECT)
-+#if defined (HAVE_PSELECT) || defined (HAVE_SELECT)
-   sigset_t empty_set;
-   fd_set readfds;
- #endif
 diff -Paur --no-dereference -- libreadline.upstream/terminal.c libreadline/terminal.c
 --- libreadline.upstream/terminal.c
 +++ libreadline/terminal.c

ports/libreadline/libreadline.port

@@ -1,10 +1,10 @@
 NAME=libreadline
 BUILD_LIBRARIES=libcurses
-VERSION=8.2
+VERSION=8.2.13
 DISTNAME=readline-$VERSION
 COMPRESSION=tar.gz
 ARCHIVE=$DISTNAME.$COMPRESSION
-SHA256SUM=3feb7171f16a84ee82ca18a36d7b9be109a52c04f492a053331d7d1095007c35
+SHA256SUM=0e5be4d2937e8bd9b7cd60d46721ce79f88a33415dd68c2d738fb5924638f656
 UPSTREAM_SITE=https://ftp.gnu.org/gnu/readline
 UPSTREAM_ARCHIVE=$ARCHIVE
 LICENSE=GPL-3.0-or-later