[Groff] [PATCH] doc: stop generating W3C validation icons

[Colin Watson]

Debian's `lintian' tool says:

  These badges may be displayed to tell readers that care has been
  taken to make a page compliant with W3C standards.  Unfortunately,
  downloading the image from www.w3.org might expose the reader's IP
  address to potential tracking.

I think the risk is a small one, but I also don't think the badges
are especially valuable, so it doesn't seem like much to ask to just
drop them at least for groff's own documentation.

* doc/doc.am (.ms.html, doc/pic.html): Remove `-P-V' option.
---
 ChangeLog  | 17 +++++++++++++++++
 doc/doc.am |  4 ++--
 2 files changed, 19 insertions(+), 2 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index e0263e6c..76491b1e 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,20 @@
+2017-02-18  Colin Watson  <address@hidden>
+
+       doc: stop generating W3C validation icons
+
+       Debian's `lintian' tool says:
+
+         These badges may be displayed to tell readers that care has been
+         taken to make a page compliant with W3C standards.  Unfortunately,
+         downloading the image from www.w3.org might expose the reader's IP
+         address to potential tracking.
+
+       I think the risk is a small one, but I also don't think the badges
+       are especially valuable, so it doesn't seem like much to ask to just
+       drop them at least for groff's own documentation.
+
+       * doc/doc.am (.ms.html, doc/pic.html): Remove `-P-V' option.
+
 2017-02-16  Ingo Schwarze  <address@hidden>
 
        mdoc %T: use typographic quotes
diff --git a/doc/doc.am b/doc/doc.am
index 27f47d61..b662f13a 100644
--- a/doc/doc.am
+++ b/doc/doc.am
@@ -134,7 +134,7 @@ SUFFIXES += .me .ms .ps .html .txt .texi .dvi .pdf .xhtml
 .ms.html:
        @$(MKDIR_P) `dirname address@hidden
        $(DOC_GROFF) -P-p -P-b -P-I`basename $< | sed -e 's|.ms$$||'` \
-                -P-D$(imagedir) -P-V -Thtml -ms >$@
+                -P-D$(imagedir) -Thtml -ms >$@
 .ms.txt:
        @$(MKDIR_P) `dirname address@hidden
        $(DOC_GROFF) -Tascii -ms -mwww >$@
@@ -155,7 +155,7 @@ doc/pic.html: $(doc_srcdir)/pic.ms $(devhtmlfont_DATA)
        cd $(doc_builddir) && \
        $(DOC_SED) $(doc_srcdir)/pic.ms | \
                $(DOC_GROFF_ONLY) -P-p -P-Ipic -P-D$(imagedir) -P-jpic \
-                -Thtml -P-V -ms > pic.html
+                -Thtml -ms > pic.html
 
 doc/examples.stamp: doc/groff.css
        @$(MKDIR_P) $(doc_builddir)
-- 
2.11.0