travis: install libnl-3-dev

Even if it will not be used due to being too old.

diff --git a/.travis/install.sh b/.travis/install.sh
index 78f43735d0b0fe17fa36ee7c19044f409224b36a..1bf9de75622a227efbeaba9350ff75192e448d53 100755 (executable)
--- a/.travis/install.sh
+++ b/.travis/install.sh
@@ -29,6 +29,7 @@ case "$(uname -s)" in
             automake autoconf libtool pkg-config \
             libsnmp-dev libxml2-dev libjansson-dev \
             libevent-dev libreadline-dev libbsd-dev \
+            libnl-3-dev \
             check
         ;;
 esac