Commits on Jul 13, 2021

1. Do not escape dash, underscore, and ampersand …

   Currently, we escape a few characters, such as
   
   	- (dash) becomes \- (arithmetic minus sign)
   	_ (underscore) becomes \_ (underline character)
   	& (ampersand) becomes \& (zero-width space)
   
   As a result, we have two bugs:
   
   1. All & characters disappear from the resulting man page.
   
   2. Dashes are quite longer, and underscores becomes underlines (the
      latter are lower). This is not reflected in text output, only in PDF
      etc, and in most cases (like file names, command line options etc)
      does not look good.
   
   In fact, the only character that needs escaping is the backslash itself.
   This is what this patch does, together with fixes to expected test
   output.
   
   Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>

   

   kolyshkin committed Jul 13, 2021
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