Format all build files with buildifier 0.15.0

Change-Id: Id4ced19dab86338122a8cb0a5dfd768eba21ff65

BUILD

diff --git a/BUILD b/BUILD
index c22e753..a886b02 100644
--- a/BUILD
+++ b/BUILD
@@ -1,9 +1,9 @@
 load("//tools/bzl:junit.bzl", "junit_tests")
 load(
     "//tools/bzl:plugin.bzl",
-    "gerrit_plugin",
     "PLUGIN_DEPS",
     "PLUGIN_TEST_DEPS",
+    "gerrit_plugin",
 )
 
 gerrit_plugin(

external_plugin_deps.bzl

diff --git a/external_plugin_deps.bzl b/external_plugin_deps.bzl
index 2709df3..12dec8c 100644
--- a/external_plugin_deps.bzl
+++ b/external_plugin_deps.bzl
@@ -1,25 +1,24 @@
 load("//tools/bzl:maven_jar.bzl", "maven_jar")
 
 def external_plugin_deps():
-  maven_jar(
-    name = "mockito",
-    artifact = "org.mockito:mockito-core:2.13.0",
-    sha1 = "8e372943974e4a121fb8617baced8ebfe46d54f0",
-    deps = [
-      '@byte-buddy//jar',
-      '@objenesis//jar',
-    ],
-  )
+    maven_jar(
+        name = "mockito",
+        artifact = "org.mockito:mockito-core:2.13.0",
+        sha1 = "8e372943974e4a121fb8617baced8ebfe46d54f0",
+        deps = [
+            "@byte-buddy//jar",
+            "@objenesis//jar",
+        ],
+    )
 
-  maven_jar(
-    name = "byte-buddy",
-    artifact = "net.bytebuddy:byte-buddy:1.7.9",
-    sha1 = "51218a01a882c04d0aba8c028179cce488bbcb58",
-  )
+    maven_jar(
+        name = "byte-buddy",
+        artifact = "net.bytebuddy:byte-buddy:1.7.9",
+        sha1 = "51218a01a882c04d0aba8c028179cce488bbcb58",
+    )
 
-  maven_jar(
-    name = "objenesis",
-    artifact = "org.objenesis:objenesis:2.6",
-    sha1 = "639033469776fd37c08358c6b92a4761feb2af4b",
-  )
-
+    maven_jar(
+        name = "objenesis",
+        artifact = "org.objenesis:objenesis:2.6",
+        sha1 = "639033469776fd37c08358c6b92a4761feb2af4b",
+    )