Bazel: Format BUILD file with buildifier

Change-Id: I2ddf3e023694e6581db94e10dafb6e3c36a8e8a8
diff --git a/BUILD b/BUILD
index e20978c..1b6857b 100644
--- a/BUILD
+++ b/BUILD
@@ -4,12 +4,11 @@
 polygerrit_plugin(
     name = "zuul-results-summary",
     srcs = glob([
-         "zuul-results-summary/*.js"
+        "zuul-results-summary/*.js",
     ]),
     app = "zuul-results-summary/zuul-results-summary.js",
 )
 
-
 # Define the eslinter for the plugin
 # The eslint macro creates 2 rules: lint_test and lint_bin
 eslint(