Let the notify extension use [diff] options too.
<?xml version='1.0' encoding="UTF-8"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version='1.0'>
<xsl:import href="http://docbook.sourceforge.net/release/xsl/current/manpages/docbook.xsl"/>
<xsl:output encoding="UTF-8"/>
<xsl:template match="refnamediv">
<xsl:text>.SH 名前 </xsl:text>
<xsl:for-each select="refname">
<xsl:if test="position()>1">
<xsl:text>, </xsl:text>
</xsl:if>
<xsl:value-of select="."/>
</xsl:for-each>
<xsl:text> \- </xsl:text>
<xsl:value-of select="normalize-space (refpurpose)"/>
</xsl:template>
<xsl:template match="refsynopsisdiv">
<xsl:text> .SH "書式" </xsl:text>
<xsl:apply-templates/>
</xsl:template>
</xsl:stylesheet>