Dash problem

Define bash as a parser, some systems can have "dash" as a "sh" that will end with errors.
# /usr/local/ispconfig/server/cron_daily.sh
[: 10: root: unexpected operator
[: 10: root: unexpected operator

Author: RKolodziejczxyk

server/cron.sh

@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 
 PATH=/sbin:/usr/sbin:/bin:/usr/bin:/usr/local/sbin:/usr/local/bin:/usr/X11R6/bin
 

server/scripts/run-getmail.sh

@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 PATH=/sbin:/usr/sbin:/bin:/usr/bin:/usr/local/sbin:/usr/local/bin:/usr/X11R6/bin
 set -e
 cd /etc/getmail

server/server.sh

@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 
 
 PATH=/sbin:/usr/sbin:/bin:/usr/bin:/usr/local/sbin:/usr/local/bin:/usr/X11R6/bin