ipsec: Fix stop command on systems where sleep(1) only supports integers

Fixes #1231.

src/ipsec/_ipsec.in

@@ -259,10 +259,15 @@ stop)
 			loop=110
 			while [ $loop -gt 0 ] ; do
 				kill -0 $spid 2>/dev/null || break
-				sleep 0.1
+				sleep 0.1 2>/dev/null
+				if [ $? -ne 0 ]
+				then
+					sleep 1
+					loop=$(($loop - 9))
+				fi
 				loop=$(($loop - 1))
 			done
-			if [ $loop -eq 0 ]
+			if [ $loop -le 0 ]
 			then
 				kill -KILL $spid 2>/dev/null
 				rm -f $IPSEC_STARTER_PID