nixos/documentation: properly reference apropos(1), mention man -k
man -k is useful to mention as it is -- in constrast to apropos(1) -- actually required by POSIX.
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@ -114,7 +114,16 @@ in
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description = ''
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Whether to generate the manual page index caches.
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This allows searching for a page or
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keyword using utilities like <literal>apropos(1)</literal>.
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keyword using utilities like
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<citerefentry>
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<refentrytitle>apropos</refentrytitle>
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<manvolnum>1</manvolnum>
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</citerefentry>
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and the <literal>-k</literal> option of
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<citerefentry>
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<refentrytitle>man</refentrytitle>
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<manvolnum>1</manvolnum>
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</citerefentry>.
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'';
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};
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