Fix build on musl

[meator]

No description provided.

[milianw]

merged, thanks

[milianw]

I was too quick, KDE servers reject your commit because you are not giving your full name:

$ git push
Enumerating objects: 9, done.
Counting objects: 100% (9/9), done.
Delta compression using up to 24 threads
Compressing objects: 100% (5/5), done.
Writing objects: 100% (5/5), 456 bytes | 456.00 KiB/s, done.
Total 5 (delta 4), reused 0 (delta 0), pack-reused 0 (from 0)
remote: Audit failure - Commit d7b28b39b9f2588ae6b7858dc9721d2e1309b0d5 - Non-full name: meator
remote: Push declined - commits failed audit
remote: Should the audit failures above mention issues regarding your name, please ensure that your Git username has been set to your full name.
remote: Please see https://git-scm.com/book/en/v2/Getting-Started-First-Time-Git-Setup for more details on ensuring Git has been fully configured.
remote: In the event that your full name has been set and is shown above as being rejected, please file a Sysadmin ticket at https://go.kde.org/systickets
To invent.kde.org:sdk/heaptrack.git
 ! [remote rejected] master -> master (pre-receive hook declined)
error: failed to push some refs to 'invent.kde.org:sdk/heaptrack.git'

any chance I can submit this with your full name?

[meator]

I do not wish to share that. I am willing to waive any authorship rights that might cause problems with the inclusion of this change to heaptrace (it is a single line of code added after all).