pcap-server: Improve log error opening pcap file

Change-Id: Id7ff71f2259cd1e0401937ffcd51b8bb0be56e3e
---
M src/osmo_server_network.c
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/osmo_server_network.c b/src/osmo_server_network.c
index d8d1867..6b70ef8 100644
--- a/src/osmo_server_network.c
+++ b/src/osmo_server_network.c
@@ -174,7 +174,8 @@
 
 	conn->local_fd = creat(conn->curr_filename, conn->server->permission_mask);
 	if (conn->local_fd < 0) {
-		LOGP(DSERVER, LOGL_ERROR, "Failed to file: '%s'\n", conn->curr_filename);
+		LOGP(DSERVER, LOGL_ERROR, "Failed to create file '%s': %s\n",
+		     conn->curr_filename, strerror(errno));
 		return;
 	}
 

