doc: move man-pages to `MAINTAINERCLEANFILES`

Since the man-pages are built and included in the distribution
tar-balls, the appropriate clean target is `maintainer-clean`.

Signed-off-by: Jeremy Sowden <jeremy@azazel.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

diff --git a/doc/Makefile.am b/doc/Makefile.am
index 5a64e39b48cf0f1f8c8a6a12a737136da8ca8683..b43cb08d2d14b1c02a85c197daf9d49e94aae776 100644 (file)
--- a/doc/Makefile.am
+++ b/doc/Makefile.am
@@ -26,5 +26,5 @@ nft.8: ${ASCIIDOCS}
 .adoc.5:
        ${AM_V_GEN}${A2X} ${A2X_OPTS_MANPAGE} $<
 
-CLEANFILES += ${dist_man_MANS}
+MAINTAINERCLEANFILES = ${dist_man_MANS}
 endif