floss_patches land: Avoid redundant newlines when description is empty

BUG=b:361231905
TEST=floss_patches land --cl_number 3298391, https://crrev.com/c/5914037

Change-Id: I16f155bd80e472b7e5d582cffe12c721b57c5257
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/bluetooth/+/5915433
Commit-Queue: Hsin-chen Chuang <[email protected]>
Reviewed-by: Dean Liao <[email protected]>
Tested-by: Hsin-chen Chuang <[email protected]>
1 file changed
tree: 10d9951ea59d9f609bb221b38443899fdb3498a0
  1. testing/
  2. tools/
  3. .gitignore
  4. DIR_METADATA
  5. OWNERS
  6. PRESUBMIT.cfg