Bazel: Automatically fix lint errors with buildifier

In recent buildifier versions, lint errors can be fixed automatically:

  $ find . \( -name BUILD -o -name "*.bzl" \) -print \
      | xargs buildifier --lint=fix

This commit was created with Buildifier version 0.19.2:

  $ buildifier --version
buildifier version: 0.19.2
buildifier scm revision: d39e4d5c25111527369142f16cdb49aa67707313

Change-Id: I1f06cd4596e794981ccc2d9fc2d1da9b17f3973a
diff --git a/gerrit-gwtui/BUILD b/gerrit-gwtui/BUILD
index 982ac25..84e647a 100644
--- a/gerrit-gwtui/BUILD
+++ b/gerrit-gwtui/BUILD
@@ -4,8 +4,8 @@
     "gwt_genrule",
     "gwt_user_agent_permutations",
 )
-load("//tools/bzl:license.bzl", "license_test")
 load("//tools/bzl:junit.bzl", "junit_tests")
+load("//tools/bzl:license.bzl", "license_test")
 
 gwt_genrule()