Add helper routine to reflow modulemd
Add helper routine to reflow modulemd

Reflowing first makes reading diffs of changes easier.

sgallagher/baseruntime-package-lists,sgallagher/baseruntime-package-lists,fedora-modularity/baseruntime-package-lists,fedora-modularity/baseruntime-package-lists,fedora-modularity/baseruntime-package-lists,sgallagher/baseruntime-package-lists