patches/openwrt: fix base-file hotplug-call

patches/openwrt/to-upstream/0016-base-files-add-sh-script-detection-to-hotplug-call.patch

+From 3bd9f7fbae315820a88f173e6ab44c83e03837bf Mon Sep 17 00:00:00 2001
+From: Jan Pavlinec <jan.pavlinec@nic.cz>
+Date: Thu, 7 Mar 2019 16:27:22 +0100
+Subject: [PATCH] base-files: add sh script detection to hotplug-call
+
+---
+ package/base-files/files/sbin/hotplug-call | 8 +++++++-
+ 1 file changed, 7 insertions(+), 1 deletion(-)
+
+diff --git a/package/base-files/files/sbin/hotplug-call b/package/base-files/files/sbin/hotplug-call
+index 28e957c..f7a3767 100755
+--- a/package/base-files/files/sbin/hotplug-call
++++ b/package/base-files/files/sbin/hotplug-call
+@@ -13,6 +13,12 @@ export DEVICENAME="${DEVPATH##*/}"
+ 
+ [ \! -z "$1" -a -d /etc/hotplug.d/$1 ] && {
+ 	for script in $(ls /etc/hotplug.d/$1/* 2>&-); do (
+-		[ -f $script ] && . $script
++		if [ -f $script ]; then
++			if grep -q '#!/bin/sh' "$script"; then
++				. $script
++			else
++				$script
++			fi
++		fi
+ 	); done
+ }
+-- 
+2.7.4
+