env: augment deprecation notice

Tell the user what to use instead of IP*TABLES_LIBDIR.

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
diff --git a/ip6tables-restore.c b/ip6tables-restore.c
index 01bccf7..a84c2e3 100644
--- a/ip6tables-restore.c
+++ b/ip6tables-restore.c
@@ -133,7 +133,8 @@
 	if (lib_dir == NULL) {
 		lib_dir = getenv("IP6TABLES_LIB_DIR");
 		if (lib_dir != NULL)
-			fprintf(stderr, "IP6TABLES_LIB_DIR is deprecated\n");
+			fprintf(stderr, "IP6TABLES_LIB_DIR is deprecated, "
+			        "use XTABLES_LIBDIR.\n");
 	}
 	if (lib_dir == NULL)
 		lib_dir = XTABLES_LIBDIR;
diff --git a/ip6tables-save.c b/ip6tables-save.c
index d5f8e54..11ef8c4 100644
--- a/ip6tables-save.c
+++ b/ip6tables-save.c
@@ -143,7 +143,8 @@
 	if (lib_dir == NULL) {
 		lib_dir = getenv("IP6TABLES_LIB_DIR");
 		if (lib_dir != NULL)
-			fprintf(stderr, "IP6TABLES_LIB_DIR is deprecated\n");
+			fprintf(stderr, "IP6TABLES_LIB_DIR is deprecated, "
+			        "use XTABLES_LIBDIR.\n");
 	}
 	if (lib_dir == NULL)
 		lib_dir = XTABLES_LIBDIR;
diff --git a/ip6tables-standalone.c b/ip6tables-standalone.c
index 11c7cb0..f4b1f18 100644
--- a/ip6tables-standalone.c
+++ b/ip6tables-standalone.c
@@ -56,7 +56,8 @@
 	if (lib_dir == NULL) {
 		lib_dir = getenv("IP6TABLES_LIB_DIR");
 		if (lib_dir != NULL)
-			fprintf(stderr, "IP6TABLES_LIB_DIR is deprecated\n");
+			fprintf(stderr, "IP6TABLES_LIB_DIR is deprecated, "
+			        "use XTABLES_LIBDIR.\n");
 	}
 	if (lib_dir == NULL)
 		lib_dir = XTABLES_LIBDIR;
diff --git a/iptables-restore.c b/iptables-restore.c
index 4ea9306..7cc6d6d 100644
--- a/iptables-restore.c
+++ b/iptables-restore.c
@@ -135,7 +135,8 @@
 	if (lib_dir == NULL) {
 		lib_dir = getenv("IPTABLES_LIB_DIR");
 		if (lib_dir != NULL)
-			fprintf(stderr, "IPTABLES_LIB_DIR is deprecated\n");
+			fprintf(stderr, "IPTABLES_LIB_DIR is deprecated, "
+			        "use XTABLES_LIBDIR.\n");
 	}
 	if (lib_dir == NULL)
 		lib_dir = XTABLES_LIBDIR;
diff --git a/iptables-save.c b/iptables-save.c
index 6252c0b..7118d1f 100644
--- a/iptables-save.c
+++ b/iptables-save.c
@@ -143,7 +143,8 @@
 	if (lib_dir == NULL) {
 		lib_dir = getenv("IPTABLES_LIB_DIR");
 		if (lib_dir != NULL)
-			fprintf(stderr, "IPTABLES_LIB_DIR is deprecated\n");
+			fprintf(stderr, "IPTABLES_LIB_DIR is deprecated, "
+			        "use XTABLES_LIBDIR.\n");
 	}
 	if (lib_dir == NULL)
 		lib_dir = XTABLES_LIBDIR;
diff --git a/iptables-standalone.c b/iptables-standalone.c
index dbfae5b..3f2432f 100644
--- a/iptables-standalone.c
+++ b/iptables-standalone.c
@@ -57,7 +57,8 @@
 	if (lib_dir == NULL) {
 		lib_dir = getenv("IPTABLES_LIB_DIR");
 		if (lib_dir != NULL)
-			fprintf(stderr, "IPTABLES_LIB_DIR is deprecated\n");
+			fprintf(stderr, "IPTABLES_LIB_DIR is deprecated, "
+			        "use XTABLES_LIBDIR.\n");
 	}
 	if (lib_dir == NULL)
 		lib_dir = XTABLES_LIBDIR;