gnupg: prevent attempt to print with %n format

Which is not allowed on android.

packages/gnupg/build.sh

@@ -3,6 +3,7 @@ TERMUX_PKG_DESCRIPTION="Implementation of the OpenPGP standard for encrypting an
 TERMUX_PKG_LICENSE="GPL-3.0"
 TERMUX_PKG_MAINTAINER="@termux"
 TERMUX_PKG_VERSION=2.4.0
+TERMUX_PKG_REVISION=1
 TERMUX_PKG_SRCURL=https://www.gnupg.org/ftp/gcrypt/gnupg/gnupg-${TERMUX_PKG_VERSION}.tar.bz2
 TERMUX_PKG_SHA256=1d79158dd01d992431dd2e3facb89fdac97127f89784ea2cb610c600fb0c1483
 TERMUX_PKG_DEPENDS="libassuan, libbz2, libgcrypt, libgnutls, libgpg-error, libksba, libnpth, libsqlite, readline, pinentry, resolv-conf, zlib"

packages/gnupg/g10-keylist.c.patch

@@ -0,0 +1,17 @@
+--- ./g10/keylist.c~	2022-11-25 16:05:09.000000000 +0100
++++ ./g10/keylist.c	2023-01-19 20:37:12.674592842 +0100
+@@ -329,12 +329,11 @@
+           else
+             s2k_char = '#';  /* Key not found.  */
+ 
+-          tty_fprintf (fp, "%s%c  %s/%s  %n",
++          tty_fprintf (fp, "%s%c  %s/%s  ",
+                        node->pkt->pkttype == PKT_PUBLIC_KEY ? "sec" : "ssb",
+                        s2k_char,
+                        pubkey_string (pk, pkstrbuf, sizeof pkstrbuf),
+-                       keystr_from_pk (pk),
+-                       &indent);
++                       keystr_from_pk (pk));
+           tty_fprintf (fp, _("created: %s"), datestr_from_pk (pk));
+           tty_fprintf (fp, "  ");
+           tty_fprintf (fp, _("expires: %s"), expirestr_from_pk (pk));