Bug#1051961: llvm-toolchain-15 - broken changelog.

[Peter Green]

Package: llvm-toolchain-15

While trying to import the llvm-toolchain-15 package from trixie
using dgit import-dsc, dgit gave the error.>
> 
> LINE: llvm-toolchain-14 (1:14.0.6-16) unstable; urgency=medium
> 
> dgit: error: missing field Maintainer in package changelog, entry no.11

Looking at the changelog it does indeed seem to be broken.

> llvm-toolchain-15 (1:15.0.7-2) unstable; urgency=medium
> 
>   [ Sylvestre Ledru ]
>   * Yeah, we would like to have this version in bookworm
>     (Closes: #1032316)
>   * Adjust some lintian overrides
>   * Disable flang on s390x. Seems that it is breaking
> 
>   [ Gianfranco Costamagna ]
>   * Update print lldb python patch, following what was done
>     in automake for newer python
> 
>   [ Samuel Thibault ]
>   * Fix disabling amdgpu on non-Linux.
> 
> llvm-toolchain-14 (1:14.0.6-16) unstable; urgency=medium
> 
>   [ Sylvestre Ledru ]
>   * also apply the wasm build fix
> 
>  -- Gianfranco Costamagna <locutusofborg at debian.org>  Fri, 08 Sep 2023 00:41:35 +0200

I presume this was a case of a merge conflict resoloution gone wrong.
I would appreciate if you could fix the changelog on the next upload.