doc: Tweak reference page header style

Change the header style of references pages in HTML and PDF output to be
more like the old style under DSSSL.  In particular, the page should
start with a header containing the command name, instead of just "Name".

doc/src/sgml/stylesheet-common.xsl

@@ -32,6 +32,8 @@
 <xsl:param name="linenumbering.extension" select="'0'"></xsl:param>
 <xsl:param name="section.autolabel" select="1"></xsl:param>
 <xsl:param name="section.label.includes.component.label" select="1"></xsl:param>
+<xsl:param name="refentry.generate.name" select="0"></xsl:param>
+<xsl:param name="refentry.generate.title" select="1"></xsl:param>
 <xsl:param name="refentry.xref.manvolnum" select="0"/>
 <xsl:param name="formal.procedures" select="0"></xsl:param>
 <xsl:param name="punct.honorific" select="''"></xsl:param>