Bug#920181: anacron: Use of @daily silently executes jobs each hour

[Miguel <miguel_void@yahoo.com>]

Package: anacron
Version: 2.3-24
Severity: wishlist

Dear Maintainer,

While mentioned on 'man anacrontab' it seems misleading that @daily is
_not_ supported but @monthly is. Of course I understand that @monthly 
differs and can not be expressed simply in the number of days.

I used @daily (admittedly wihtout reading the man page) and ended up with 
a job executed each hour, on every invoction of anacron and _no_ errors.

What I would expect: 

    * the job _NOT_ beeing executed every hour.
    * errors when unsupported symbols are used.
    * bonus: anacron support for @daily and @weekly and maybe more.

Warm regards,
miguel

-- System Information:
Debian Release: 9.6
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'stable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.9.0-8-amd64 (SMP w/8 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US:en (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages anacron depends on:
ii  debianutils          4.8.1.1
ii  init-system-helpers  1.48
ii  libc6                2.24-11+deb9u3
ii  lsb-base             9.20161125

Versions of packages anacron recommends:
ii  cron [cron-daemon]           3.0pl1-128+deb9u1
ii  rsyslog [system-log-daemon]  8.24.0-1

Versions of packages anacron suggests:
ii  exim4-daemon-light [mail-transport-agent]  4.89-2+deb9u3
ii  powermgmt-base                             1.31+nmu1

-- Configuration Files:
/etc/anacrontab changed [not included]

-- no debconf information