the n- in phrase "ten- to twenty-fold" should not be rendered italic

[tilman-schieber]

In the sentence

This process requires a ten- to twenty-fold excess of water to suppress the formation of polyethers.

the n in ten- is rendered as italic.

[SillyFreak]

My naive fix would be to make the following change here:

- (exo)|[iompnNO])-
+ (exo)|\b[iompnNO])-

But I don't know enough about nomenclature to ensure this is correct and comprehensive