[PATCH xtables-addons] doc: fix version number in xtables-addons.8

[Jeremy Sowden <jeremy@azazel.net>]

In v3.21 a change was made to the man-page template to use `@PACKAGE_VERSION@`,
instead of manually updating the version number on every release.  However,
xtables-addons.8.in is not processed by configure, so the appropriate version is
never filled in.

Update Makefile.mans to handle it.

Fixes: b6611c54f2b5 ("Xtables-addons 3.21")
Signed-off-by: Jeremy Sowden <jeremy@azazel.net>
---
 Makefile.mans.in | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/Makefile.mans.in b/Makefile.mans.in
index 63424f7d558a..17f786d64869 100644
--- a/Makefile.mans.in
+++ b/Makefile.mans.in
@@ -31,7 +31,10 @@ man_run = \
 all: xtables-addons.8
 
 xtables-addons.8: ${srcdir}/xtables-addons.8.in matches.man targets.man
-	${AM_V_GEN}sed -e '/@MATCHES@/ r matches.man' -e '/@TARGET@/ r targets.man' $< >$@;
+	${AM_V_GEN}sed \
+		-e 's/@PACKAGE'_'VERSION@/@PACKAGE_VERSION@/' \
+		-e '/@MATCHES@/ r matches.man' \
+		-e '/@TARGET@/ r targets.man' $< >$@;
 
 matches.man: .manpages.lst ${wcman_matches}
 	$(call man_run,${wlist_matches})
-- 
2.40.1