Add option to install Finit as system default init

Signed-off-by: Joachim Nilsson <troglobit@gmail.com>

contrib/alpine/install.sh

@@ -36,6 +36,15 @@ if [ "x$yorn" = "xy" -o "x$yorn" = "xY" ]; then
     cp -va finit.d /etc/
 
     echo "*** Done"
+    read -p "*** Install Finit as the system default Init (y/N)? " yorn
+    if [ "x$yorn" = "xy" -o "x$yorn" = "xY" ]; then
+	echo "*** Updating /sbin/init symlink --> finit ..."
+	cd /sbin
+	rm init
+	ln -s finit init
+	cd -
+	echo "*** Done"
+    fi
     echo
 else
     echo