* no-op commit due to failed cherry-picking

* port over kvbuilder backslash fix from go-secure-stdlib

* add changelog entry

(cherry picked from commit d90053515f1aa03e394ad649773521880c597820)

* fix single backslash kv put test
Co-authored-by: temp <temp@hashicorp.com>
Co-authored-by: Chris Capurso <1036769+ccapurso@users.noreply.github.com>