Reformat some BUILD files according to the buildifier guidelines

Change-Id: I8aa599f89fc14296275193475e50eb8f27b4bf0a
diff --git a/apps/yang/BUILD b/apps/yang/BUILD
index d284902..1f38d13 100644
--- a/apps/yang/BUILD
+++ b/apps/yang/BUILD
@@ -1,30 +1,30 @@
 COMPILE_DEPS = CORE_DEPS + JACKSON + CLI + ONOS_YANG + [
-  "//core/common:onos-core-common",
-  "@onos_yang_runtime//jar",
+    "//core/common:onos-core-common",
+    "@onos_yang_runtime//jar",
 ]
 
 BUNDLES = ONOS_YANG + [
-  "@onos_yang_runtime//jar",
-  "//apps/yang:onos-apps-yang",
-  "//apps/yang/web:onos-apps-yang-web",
-  "@org_apache_servicemix_bundles_dom4j//jar",
+    "@onos_yang_runtime//jar",
+    "//apps/yang:onos-apps-yang",
+    "//apps/yang/web:onos-apps-yang-web",
+    "@org_apache_servicemix_bundles_dom4j//jar",
 ]
 
 EXCLUDED_BUNDLES = [
 ]
 
 osgi_jar_with_tests(
-  deps = COMPILE_DEPS,
+    deps = COMPILE_DEPS,
 )
 
 onos_app(
-  category = "Utility",
-  description = "Provides ability to register compiled YANG models or even to compile YANG source " +
-    "files on the fly. Registering YANG models allows other ONOS subsystems to interact with " +
-    "orchestrators or individual network devices using XML or JSON data structured in accordance " +
-    "with those models.",
-  included_bundles = BUNDLES,
-  excluded_bundles = EXCLUDED_BUNDLES,
-  title = "YANG Compiler and Runtime",
-  url = "http://onosproject.org",
+    category = "Utility",
+    description = "Provides ability to register compiled YANG models or even to compile YANG source " +
+                  "files on the fly. Registering YANG models allows other ONOS subsystems to interact with " +
+                  "orchestrators or individual network devices using XML or JSON data structured in accordance " +
+                  "with those models.",
+    excluded_bundles = EXCLUDED_BUNDLES,
+    included_bundles = BUNDLES,
+    title = "YANG Compiler and Runtime",
+    url = "http://onosproject.org",
 )