[l2h] sub do_cmd_textsc() should leave punctuation outside of <small> blocks

[Julius Smith]

In latex2html 2002-2-1 (1.70), the LaTeX \textsc{Transform (DFT)} translates to

  T<SMALL>RANSFORM (</SMALL>DFT)

when it should be

  T<SMALL>RANSFORM </SMALL>(DFT)

In other words, the parentheses should not be different sizes.  One 
solution might be to terminate the SMALL block on any non-word, 
non-whitespace chars (in sub process_smallcaps, I presume).

Julius