Corrected typo in nfib example (/ => `div`).
Added description for hp2ps's -c/-y flags.
<programlisting>
main = print (f 25 + g 25)
f n = nfib n
-g n = nfib (n/2)
+g n = nfib (n `div` 2)
nfib n = if n < 2 then 1 else nfib (n-1) + nfib (n-2)
</programlisting>
</varListEntry>
<varListEntry>
+ <term><Option>-c</Option></Term>
+ <listItem>
+ <para>Generate colour output.</para>
+ </listItem>
+ </varListEntry>
+
+ <varListEntry>
+ <term><Option>-y</Option></Term>
+ <listItem>
+ <para>Ignore marks.</para>
+ </listItem>
+ </varListEntry>
+
+ <varListEntry>
<term><Option>-?</Option></Term>
<listItem>
<para>Print out usage information.</para>