Standardize on the vi editing directives being on the first line.
diff --git a/networking/zcip.c b/networking/zcip.c
index 836cb78..5e10673 100644
--- a/networking/zcip.c
+++ b/networking/zcip.c
@@ -1,3 +1,4 @@
+/* vi: set sw=4 ts=4: */
 /*
  * RFC3927 ZeroConf IPv4 Link-Local addressing
  * (see <http://www.zeroconf.org/>)