Set miter limit for anchor name

[florianpircher]

When drawing certain letter shapes of an anchor name, the stroke might create undesirable spikes:

Setting a miter limit is how such cases are typically controlled, but in this case, there does not seem to be exist Apple-provided API for configuring the miter limit of an attributed string. The only two stroke settings for NSAttributedString are NSStrokeColorAttributeName and NSStrokeWidthAttributeName.

This issue could be resolved by getting the Bézier path of the text and drawing it manually since NSBezierPath and Core Graphics both offer miter limits.