merge rev 1.47.2.1:
* typo ('-help' -> '--help')
<variablelist>
<varlistentry>
- <term><literal>-help</literal></term>
+ <term><literal>--help</literal></term>
<term><literal>-?</literal></term>
<indexterm><primary><literal>-?</literal></primary></indexterm>
- <indexterm><primary><literal>-help</literal></primary></indexterm>
+ <indexterm><primary><literal>--help</literal></primary></indexterm>
<listitem>
<para>Cause GHC to spew a long usage message to standard
output and then exit.</para>