Excessive notifications from cron jobs

Hi Folks,
I enabled email for cron jobs, so I could see failures.
Many of the standard cron jobs create output that is unnecessary.
For example, /var/cache/netmgr/lock_timer.sh runs once a minute, and includes two calls to curl without the -s flag. These then generate an email from cron every time, containing the progress-report output from curl.

Likewise, the job /sbin/clean_reset_pwd that runs once a day has errors, and reports:

sh: /sbin/qlicense: No such file or directory
[-1102] = Clean_Reset_Pwd_Over_Endtime;

and there are others.
Standard practice is to collect cron job output and send it to an administrator to detect errors: it seems the developers did not do this.

This is on a TS-664 running the latest OS, 5.2.3.3006