Update buildozer.go

Rollback accidental line change in https://github.com/bazelbuild/buildtools/pull/1491

edit/buildozer.go

diff --git a/edit/buildozer.go b/edit/buildozer.go
index 861cc7e..8496829 100644
--- a/edit/buildozer.go
+++ b/edit/buildozer.go
@@ -1207,7 +1207,7 @@
 
 // BuildFileNames is exported so that users that want to override it
 // in scripts are free to do so.
-var BuildFileNames = [...]string{"BUILD", "BUILD.bazel", "BUCK"}
+var BuildFileNames = [...]string{"BUILD.bazel", "BUILD", "BUCK"}
 
 // Buildifier formats the build file using the buildifier logic.
 type Buildifier interface {