man,html: say 'systemd 198' in the header

This should help readers of the man or HTML pages know if the documentation
is out of date. An alternative to use a date generated from 'git log' was
considered, but since we try to keep user visible documentation up to date,
showing the project version should be enough.

Makefile.am

@@ -3680,9 +3680,9 @@ XSLTPROC_FLAGS = \
 	--nonet \
 	--stringparam man.output.quietly 1 \
 	--stringparam funcsynopsis.style ansi \
-	--stringparam man.th.extra1.suppress 1 \
 	--stringparam man.authors.section.enabled 0 \
-	--stringparam man.copyright.section.enabled 0
+	--stringparam man.copyright.section.enabled 0 \
+	--stringparam systemd.version $(VERSION)
 
 XSLTPROC_PROCESS_MAN = \
 	$(AM_V_XSLT)$(MKDIR_P) $(dir $@) && \

man/custom-html.xsl

@@ -65,6 +65,11 @@
     </xsl:attribute>
     <xsl:text>gudev </xsl:text>
   </a>
+
+  <span style="float:right">
+    <xsl:text>systemd </xsl:text>
+    <xsl:value-of select="$systemd.version"/>
+  </span>
   <hr/>
 </xsl:template>
 

man/custom-man.xsl

@@ -28,4 +28,28 @@
 
 <xsl:template name="top.comment" />
 
+<xsl:template name="TH.title.line">
+    <xsl:param name="title"/>
+    <xsl:param name="section"/>
+    <xsl:param name="extra1"/>
+    <xsl:param name="extra2"/>
+    <xsl:param name="extra3"/>
+
+    <xsl:call-template name="mark.subheading"/>
+    <xsl:text>.TH "</xsl:text>
+    <xsl:call-template name="string.upper">
+      <xsl:with-param name="string">
+        <xsl:value-of select="normalize-space($title)"/>
+      </xsl:with-param>
+    </xsl:call-template>
+    <xsl:text>" "</xsl:text>
+    <xsl:value-of select="normalize-space($section)"/>
+    <xsl:text>" "" "systemd </xsl:text>
+    <xsl:value-of select="$systemd.version"/>
+    <xsl:text>" "</xsl:text>
+    <xsl:value-of select="normalize-space($extra3)"/>
+    <xsl:text>"&#10;</xsl:text>
+    <xsl:call-template name="mark.subheading"/>
+</xsl:template>
+
 </xsl:stylesheet>

src/python-systemd/docs/layout.html

@@ -6,7 +6,7 @@
   <a href="index.html">Python </a>·
   <a href="../libudev/index.html">libudev </a>·
   <a href="../libudev/index.html">gudev </a>
-  <span style="float:right">systemd v. {{release}}</span>
+  <span style="float:right">systemd {{release}}</span>
   <hr />
 {% endblock %}