Reformat plugins.bzl to match the style of the new auto-update tool
Reformat plugins.bzl to match the style of the new auto-update tool

Change-Id: Ie55ccda34386881a58f5a7a5fe03b4f336dee1bb

bazelbuild/continuous-integration,bazelbuild/continuous-integration,bazelbuild/continuous-integration,bazelbuild/continuous-integration,bazelbuild/continuous-integration,bazelbuild/continuous-integration,bazelbuild/continuous-integration,bazelbuild/continuous-integration