Standardize on the vi editing directives being on the first line.
diff --git a/e2fsprogs/blkid/devno.c b/e2fsprogs/blkid/devno.c
index 8911994..f3fa5c0 100644
--- a/e2fsprogs/blkid/devno.c
+++ b/e2fsprogs/blkid/devno.c
@@ -1,3 +1,4 @@
+/* vi: set sw=4 ts=4: */
 /*
  * devno.c - find a particular device by its device number (major/minor)
  *