Standardize on the vi editing directives being on the first line.
diff --git a/networking/udhcp/socket.c b/networking/udhcp/socket.c
index 6417267..2d253c1 100644
--- a/networking/udhcp/socket.c
+++ b/networking/udhcp/socket.c
@@ -1,3 +1,4 @@
+/* vi: set sw=4 ts=4: */
 /*
  * socket.c -- DHCP server client/server socket creation
  *