Merge pull request #16216 from nabijaczleweli/make-a-fuss

man/sd-makefs: mention that mkswap can also be run and fix deadlink to btrfs-man5(5)

man/custom-html.xsl

@@ -19,7 +19,8 @@
 <xsl:template match="citerefentry[not(@project)]">
   <a>
     <xsl:attribute name="href">
-      <xsl:value-of select="refentrytitle"/><xsl:text>.html#</xsl:text>
+      <xsl:value-of select="refentrytitle"/>
+      <xsl:text>.html#</xsl:text>
       <xsl:value-of select="refentrytitle/@target"/>
     </xsl:attribute>
     <xsl:call-template name="inline.charseq"/>
@@ -133,6 +134,15 @@
   </a>
 </xsl:template>
 
+<xsl:template match="citerefentry[@project='url']">
+  <a>
+    <xsl:attribute name="href">
+      <xsl:value-of select="refentrytitle/@url"/>
+    </xsl:attribute>
+    <xsl:call-template name="inline.charseq"/>
+  </a>
+</xsl:template>
+
 <!--
   - helper template to do conflict resolution between various headings with the same inferred ID attribute/tag from the headerlink template
   - this conflict resolution is necessary to prevent malformed HTML output (multiple ID attributes with the same value)

man/systemd-makefs@.service.xml

@@ -51,7 +51,8 @@
     <para><filename>systemd-makefs</filename> knows very little about specific file
     systems and swap devices, and after checking that the block device does not already
     contain a file system or other content, it will execute binaries specific to
-    each filesystem type (<filename>/sbin/mkfs.<replaceable>type</replaceable></filename>).</para>
+    each filesystem type (<filename>/sbin/mkfs.<replaceable>type</replaceable></filename>
+    or <filename>/sbin/mkswap</filename>).</para>
 
     <para><filename>systemd-growfs</filename> knows very little about specific file
     systems and swap devices, and will instruct the kernel to grow the mounted
@@ -61,8 +62,7 @@
     number specific to each file system, so only certain types are supported.
     Currently:
     <citerefentry project='man-pages'><refentrytitle>ext4</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
-    btrfs (see
-    <citerefentry project='man-pages'><refentrytitle>btrfs-man5</refentrytitle><manvolnum>5</manvolnum></citerefentry>),
+    <citerefentry project='url'><refentrytitle url='https://btrfs.wiki.kernel.org/index.php/Manpage/btrfs(5)'>btrfs</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
     <citerefentry project='man-pages'><refentrytitle>xfs</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
     <!-- yes, that's what the man page is called. -->
     and dm-crypt partitions (see