Can curved lines in a class diagram be considered a documentation bug?

[CSmortal]

If there is a few (not just one) of these curved lines, should it be considered a cosmetic (i.e very low severity) documentation bug? Read somewhere that curved lines is not a good practice for drawing UML diagrams

[damithc]

Hmm... I don't think it's a problem. Curving lines is out of our control anyway, as it is done automatically by PlantUML.

But if you think the diagram is quite hard to read, it can be considered a bug as there are ways to tweak the layout of a PlantUML diagram in some limited ways.