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/payload.py b/api/controller/payload.py
index 58d0fef..d3304b6 100644
--- a/api/controller/payload.py
+++ b/api/controller/payload.py
@@ -96,8 +96,9 @@
     # Find the value of bucket or default to 'chromeos-releases'.
     destination_bucket = input_proto.bucket or "chromeos-releases"
 
-    # There's a potential that some paygen_lib library might raise here, but since
-    # we're still involved in config we'll keep it before the validate_only.
+    # There's a potential that some paygen_lib library might raise here, but
+    # since we're still involved in config we'll keep it before the
+    # validate_only.
     payload_config = payload.PayloadConfig(
         tgt_image,
         src_image,