ipcalc: removed feature

[Przemyslaw Wrzos]

Hi,

I wanted to ask about a feature that was removed with commit 823b636cd14
from the ipcalc command.

Prior to this commit, it was possible to use ipcalc purely to query if
an address was valid without producing any results. Combined with the
'-s' switch this made it very handy for scripts. This features seems to
be no longer supported. I suppose I could redirect to /dev/null but
that's not as neat. Was this accidental or intentional?

Cheers,
Przemyslaw Wrzos