doc: Improve man build speed

Turn off man.endnotes.are.numbered parameter, which we don't need, but
which increases performance vastly if off.  Also turn on
man.output.quietly, which also makes things a bit faster, but which is
also less useful now as a progress indicator because the build is so
fast now.

doc/src/sgml/stylesheet-man.xsl

@@ -12,11 +12,13 @@
 
 <xsl:param name="man.authors.section.enabled">0</xsl:param>
 <xsl:param name="man.copyright.section.enabled">0</xsl:param>
+<xsl:param name="man.endnotes.are.numbered">0</xsl:param> <!-- for performance -->
 <xsl:param name="man.output.base.dir"></xsl:param>
 <xsl:param name="man.output.in.separate.dir" select="1"></xsl:param>
-<xsl:param name="refentry.meta.get.quietly" select="0"></xsl:param>
+<xsl:param name="man.output.quietly" select="1"></xsl:param>
 <xsl:param name="man.th.title.max.length">32</xsl:param> <!-- enough room for "CREATE TEXT SEARCH CONFIGURATION" -->
 <xsl:param name="man.th.extra3.max.length">40</xsl:param> <!-- enough room for "PostgreSQL X.Ydevel Documentation" -->
+<xsl:param name="refentry.meta.get.quietly" select="0"></xsl:param>
 <xsl:param name="refentry.xref.manvolnum" select="1"/> <!-- overridden from stylesheet-common.xsl -->
 
 <!-- Fixup for apostrophe groff output.  See the following references: