zfsbootmenu: fix date invocation

srcpkgs/zfsbootmenu/patches/date.patch

@@ -0,0 +1,22 @@
+From 4868300e3295dce16f3672176caf4dad413d1d6d Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Ferm=C3=ADn=20Olaiz?= <fermino@users.noreply.github.com>
+Date: Tue, 9 Jan 2024 17:59:28 -0300
+Subject: [PATCH] install-helpers.sh: fix date template syntax
+
+---
+ zfsbootmenu/install-helpers.sh | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/zfsbootmenu/install-helpers.sh b/zfsbootmenu/install-helpers.sh
+index 5af273e7d..8eb1ef41c 100644
+--- a/zfsbootmenu/install-helpers.sh
++++ b/zfsbootmenu/install-helpers.sh
+@@ -262,7 +262,7 @@ install_zbm_osver() {
+   local build_date
+   [ -r "${zfsbootmenu_module_root}/zbm-release" ] || return 0
+   zbm_install_file "${zfsbootmenu_module_root}/zbm-release" "/etc/zbm-release"
+-  if build_date="$(date %Y-%m-%d)"; then
++  if build_date="$(date '+%Y-%m-%d')"; then
+     cat >> "${BUILDROOT}/etc/zbm-release" <<-EOF
+ 	BUILD_ID="${build_date}"
+ 	EOF

srcpkgs/zfsbootmenu/template

@@ -1,7 +1,7 @@
 # Template file for 'zfsbootmenu'
 pkgname=zfsbootmenu
 version=2.3.0
-revision=1
+revision=2
 build_style=gnu-makefile
 make_build_target="zbm-release"
 depends="dracut zfs kexec-tools fzf bash pigz mbuffer ncurses