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<p class="quotelead" style="padding: 0 0.5em; margin-bottom: -1em; font-size: 80%">Regarding the following, written by "Daniel Shahaf" on 2021-12-31 at 02:16 Uhr +0000:</p>
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<p style="padding: 0 0.5em">The two consecutive colons on the -a line mean the -a option takes an optional argument.</p>
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<p style="padding: 0 0.5em">Herein lies the problem:</p>
<pre style="line-height: 125%; margin: 0; padding: 0 1em"><code style="white-space: pre-wrap"> -a <file> [...] -- attach file(s) to the message
the list of files must be terminated with the "--" sequence </code></pre>
<p style="padding: 0 0.5em">So it's neither optional, nor even a single word by necessity.</p>
<div class="signature" style="color: #999; font-family: monospace; white-space: pre; margin: 1em 0 0 0; font-size: 80%"><span class="leader">-- </span><pre style="line-height: 125%; margin: 0; padding: 0 1em"><code style="white-space: pre-wrap"> .''`. martin f. krafft <madduck@d.o> @martinkrafft
: :' : proud Debian developer
`. `'` http://people.debian.org/~madduck
`- Debian - when you have better things to do than fixing systems
"the college students who are using lsd and marijuana today do not
comprise a criminal class. they are not drug addicts seeking to
escape. they're your best educated, your most creative, and your
most couragious, young people. and like it or not, they might build
you a new civilisation." -- porcupine tree, voyage 34
</code></pre>
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