Format build files with buildifier 0.12.0

Format all .bzl files, BUILD files, and WORKSPACE.

Change-Id: I6aa941e0195d67056734a326a4eb5821c59f19bb

external_plugin_deps.bzl

diff --git a/external_plugin_deps.bzl b/external_plugin_deps.bzl
index b3994bb..e560344 100644
--- a/external_plugin_deps.bzl
+++ b/external_plugin_deps.bzl
@@ -1,15 +1,14 @@
 load("//tools/bzl:maven_jar.bzl", "maven_jar")
 
 def external_plugin_deps(omit_commons_codec = True):
-  maven_jar(
-      name = "scribe",
-      artifact = "org.scribe:scribe:1.3.7",
-      sha1 = "583921bed46635d9f529ef5f14f7c9e83367bc6e",
-  )
-  if not omit_commons_codec:
     maven_jar(
-       name = "commons-codec",
-       artifact = "commons-codec:commons-codec:1.4",
-       sha1 = "4216af16d38465bbab0f3dff8efa14204f7a399a",
+        name = "scribe",
+        artifact = "org.scribe:scribe:1.3.7",
+        sha1 = "583921bed46635d9f529ef5f14f7c9e83367bc6e",
     )
-
+    if not omit_commons_codec:
+        maven_jar(
+            name = "commons-codec",
+            artifact = "commons-codec:commons-codec:1.4",
+            sha1 = "4216af16d38465bbab0f3dff8efa14204f7a399a",
+        )