Format external_plugin_dependencies.bzl with buildifier

Change-Id: Iebe5be02dba20a682fd2b4547d99ea2934b88672
diff --git a/external_plugin_deps.bzl b/external_plugin_deps.bzl
index bafd39f..71c3df8 100644
--- a/external_plugin_deps.bzl
+++ b/external_plugin_deps.bzl
@@ -1,34 +1,33 @@
 load("//tools/bzl:maven_jar.bzl", "maven_jar")
 
 def external_plugin_deps():
-  maven_jar(
-    name = "mockito",
-    artifact = "org.mockito:mockito-core:2.15.0",
-    sha1 = "b84bfbbc29cd22c9529409627af6ea2897f4fa85",
-    deps = [
-      "@byte_buddy//jar",
-      "@byte_buddy_agent//jar",
-      "@objenesis//jar",
-    ],
-  )
+    maven_jar(
+        name = "mockito",
+        artifact = "org.mockito:mockito-core:2.15.0",
+        sha1 = "b84bfbbc29cd22c9529409627af6ea2897f4fa85",
+        deps = [
+            "@byte_buddy//jar",
+            "@byte_buddy_agent//jar",
+            "@objenesis//jar",
+        ],
+    )
 
-  BYTE_BUDDY_VER = "1.7.9"
+    BYTE_BUDDY_VER = "1.7.9"
 
-  maven_jar(
-    name = "byte_buddy",
-    artifact = "net.bytebuddy:byte-buddy:" + BYTE_BUDDY_VER,
-    sha1 = "51218a01a882c04d0aba8c028179cce488bbcb58",
-  )
+    maven_jar(
+        name = "byte_buddy",
+        artifact = "net.bytebuddy:byte-buddy:" + BYTE_BUDDY_VER,
+        sha1 = "51218a01a882c04d0aba8c028179cce488bbcb58",
+    )
 
-  maven_jar(
-    name = "byte_buddy_agent",
-    artifact = "net.bytebuddy:byte-buddy-agent:" + BYTE_BUDDY_VER,
-    sha1 = "a6c65f9da7f467ee1f02ff2841ffd3155aee2fc9",
-  )
+    maven_jar(
+        name = "byte_buddy_agent",
+        artifact = "net.bytebuddy:byte-buddy-agent:" + BYTE_BUDDY_VER,
+        sha1 = "a6c65f9da7f467ee1f02ff2841ffd3155aee2fc9",
+    )
 
-  maven_jar(
-    name = "objenesis",
-    artifact = "org.objenesis:objenesis:2.6",
-    sha1 = "639033469776fd37c08358c6b92a4761feb2af4b",
-  )
-
+    maven_jar(
+        name = "objenesis",
+        artifact = "org.objenesis:objenesis:2.6",
+        sha1 = "639033469776fd37c08358c6b92a4761feb2af4b",
+    )