helper: Print pid of killed mosh sessions

kill-old-mosh

@@ -4,13 +4,13 @@ count=0
 while read pid _; do
 	session=$(cat /proc/$pid/sessionid)
 	if [ "$mysession" != "$session" ]; then 
-		kill $pid
-                count=$((count + 1))
+		if kill $pid; then
+			echo 2>&1 "stale mosh session $pid killed"
+	                count=$((count + 1))
+		fi
 	fi
 done <<<$(ps -C mosh-server -o pid=,etimes= | sort -k 2 -r)
 
 if [[ $count -eq 0 ]]; then
 	echo 2>&1 "No stale mosh session found"
-else
-	echo 2>&1 "$count stale mosh session(s) killed"
 fi