Standardize on the vi editing directives being on the first line.
diff --git a/e2fsprogs/ext2fs/ext2_err.h b/e2fsprogs/ext2fs/ext2_err.h
index a2a506f..ead3528 100644
--- a/e2fsprogs/ext2fs/ext2_err.h
+++ b/e2fsprogs/ext2fs/ext2_err.h
@@ -1,3 +1,4 @@
+/* vi: set sw=4 ts=4: */
 /*
  * ext2_err.h:
  * This file is automatically generated; please do not edit it.