nathelper: initialize local variable

[lazedo]

Pre-Submission Checklist

• Commit message has the format required by CONTRIBUTING guide
• Commits are split per component (core, individual modules, libs, utils, ...)
• Each component has a single commit (if not, squash them into one commit)
• No commits to README files for modules (changes must be done to docbook files
  in doc/ subfolder, the README file is autogenerated)

Type Of Change

• Small bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds new functionality)
• Breaking change (fix or feature that would change existing functionality)

Checklist:

• PR should be backported to stable branches
• Tested changes locally
• Related to issue #XXXX (replace XXXX with an open issue number)

Description

previous PR #1655 was wrong and tests at the time didn't hit the correct path in the code, sorry for that.
this pr reverts #1655 and properly initializes a variable

[miconda]

You can merge and backport when appropriate.

[lazedo]

@miconda thanks. is commit 0d14ce8 being backported ? or should i resolve the conflicts for 5.1 ?
i can backport it as part of this if you want

[miconda]

Backported.