restore IPKG_INSTROOT check in init script

Author: stangri

Makefile

@@ -3,7 +3,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=https-dns-proxy
 PKG_VERSION:=2025.09.11
-PKG_RELEASE:=3
+PKG_RELEASE:=4
 
 PKG_SOURCE_PROTO:=git
 PKG_SOURCE_URL:=https://github.com/baranyaib90/https_dns_proxy/

files/etc/init.d/https-dns-proxy

@@ -9,6 +9,8 @@ STOP=15
 # shellcheck disable=SC2034
 USE_PROCD=1
 
+[ -n "${IPKG_INSTROOT}" ] && return 0
+
 if type extra_command 1>/dev/null 2>&1; then
 	extra_command 'version' 'Show version information'
 else