#5260 lurkmathml typesets t(x) incorrectly

[Leo Butler]

Consider:

(%i1) mathml(t(x));

<math xmlns="http://www.w3.org/1998/Math/MathML"> <mi>true</mi> 
<mi>x</mi> </math>

When $T does not have a mathmlword property, the mathmlword functions uses stripdolar, which returns the Lisp symbol T and this is typeset as true. The solution is to replace stripdollar with mathml-stripdollar (this is similar to what is done in mactex.lisp).

[Leo Butler]

This also affects the typesetting of t[x] and t[x](y), so we need to patch mathmlsym, too.

[Leo Butler]

Fixed in commit bdd8aee3c8.