Merge branch 'cj/doc-format'

* cj/doc-format: Documentation: use "spurious .sp" XSLT if DOCBOOK_SUPPRESS_SP is set Documentation: option to render literal text as bold for manpages Documentation: asciidoc.conf: fix verse block with block titles Documentation: asciidoc.conf: always use <literallayout> for [blocktext] Documentation: move "spurious .sp" code into manpage-base.xsl Documentation: move quieting params into manpage-base.xsl Documentation: rename docbook-xsl-172 attribute to git-asciidoc-no-roff Documentation: use parametrized manpage-base.xsl with manpage-{1.72,normal}.xsl Documentation: move callouts.xsl to manpage-{base,normal}.xsl Documentation/Makefile: break up texi pipeline Documentation/Makefile: make most operations "quiet"