api: controller: Lint fixes.

Fix line-too-long and docstring-section-indent errors.

BUG=b:233893248
TEST=cros lint

Change-Id: I52ac19eb3a38066d4d09d56d27d61c904269a0e7
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/chromite/+/4190794
Tested-by: Alex Klein <saklein@chromium.org>
Commit-Queue: Alex Klein <saklein@chromium.org>
Auto-Submit: Alex Klein <saklein@chromium.org>
Reviewed-by: Cindy Lin <xcl@google.com>
diff --git a/api/controller/metadata.py b/api/controller/metadata.py
index 128cb19..91e3d2c 100644
--- a/api/controller/metadata.py
+++ b/api/controller/metadata.py
@@ -74,9 +74,11 @@
         ),
     )
 
+    # pylint: disable=line-too-long
     output_proto.system_image.metadata.build_target.portage_build_target.CopyFrom(
         portage_build_target
     )
+    # pylint: enable=line-too-long
     output_proto.system_image.metadata.package_summary.CopyFrom(package_summary)
 
     portage_db = portage_util.PortageDB(sysroot.path)