[PATCH usteer 1/2] build: use apk-compatible package date version

[AndreaCovelli]

The apk package builder rejects versions like 2026-05-03-r1 generated
by --date=short. Use a dotted date format so local builds produce
versions like 2026.05.03-r1.

Signed-off-by: AndreaCovelli <andcov23 at gmail.com>
---
Build-tested with OpenWrt SDK 25.12.2 mediatek/filogic for Cudy WR3000P;
this produces usteer-2026.05.04-r1.apk for aarch64_cortex-a53 locally.

 openwrt/usteer/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/openwrt/usteer/Makefile b/openwrt/usteer/Makefile
index be7d298..f1d6a6d 100644
--- a/openwrt/usteer/Makefile
+++ b/openwrt/usteer/Makefile
@@ -1,7 +1,7 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=usteer
-PKG_VERSION:=$(shell git show -s --format=%cd --date=short)
+PKG_VERSION:=$(shell git show -s --format=%cd --date=format:%Y.%m.%d)
 PKG_RELEASE:=1
 
 PKG_BUILD_DEPENDS:=libpcap
-- 
2.43.0