babeld: place the babel-state file in the quagga vars directory.
diff --git a/babeld/babel_main.c b/babeld/babel_main.c
index 0a958e6..b7fffc1 100644
--- a/babeld/babel_main.c
+++ b/babeld/babel_main.c
@@ -93,7 +93,7 @@
{0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
-static const char *state_file = "/var/lib/babeld/babel-state";
+static const char *state_file = DAEMON_VTY_DIR "/babel-state";
unsigned char protocol_group[16]; /* babel's link-local multicast address */
int protocol_port; /* babel's port */