Bazel: Reformat BUILD file with buildifier

Change-Id: I0e2f1450364533c4bcba9ef0af3cb79b4a26de2f

BUILD

diff --git a/BUILD b/BUILD
index ffd3535..d6d4eeb 100644
--- a/BUILD
+++ b/BUILD
@@ -1,11 +1,11 @@
-load('//tools/bzl:plugin.bzl', 'gerrit_plugin')
+load("//tools/bzl:plugin.bzl", "gerrit_plugin")
 
 gerrit_plugin(
-  name = 'singleusergroup',
-  srcs = glob(['src/main/java/**/*.java']),
-  resources = glob(['src/main/resources/**/*']),
-  manifest_entries = [
-    'Gerrit-PluginName: singleusergroup',
-    'Gerrit-Module: com.googlesource.gerrit.plugins.singleusergroup.SingleUserGroup$Module',
-  ],
+    name = "singleusergroup",
+    srcs = glob(["src/main/java/**/*.java"]),
+    manifest_entries = [
+        "Gerrit-PluginName: singleusergroup",
+        "Gerrit-Module: com.googlesource.gerrit.plugins.singleusergroup.SingleUserGroup$Module",
+    ],
+    resources = glob(["src/main/resources/**/*"]),
 )