ddns-scripts: "service ddns stop" , "service ddns restart" do not work if procps-ng-ps package is installed

[escot]

[root@host]# opkg list-installed | grep procps-ng-ps
procps-ng-ps - 4.0.4-r1

[root@host]# ps --version
ps from procps-ng 4.0.4

[root@host]# ls -lart /bin/ps
lrwxrwxrwx 1 root root 25 Feb 25 17:33 /bin/ps -> /usr/libexec/ps-procps-ng

If procps-ng-ps is installed, the busybox ps is replaced with /usr/libexec/ps-procps-ng

As a result, the stop_section_processes routine in dynamic_dns_functions.sh does not work correctly because of the line 213
ps | grep "^[\t ]*$__PID" >/dev/null 2>&1 && kill $__PID || __PID=0 # terminate it

Should be replaced with
busybox ps | grep "^[\t ]*$__PID" >/dev/null 2>&1 && kill $__PID || __PID=0 # terminate it