bug#38545: 26.1; comment-multi-line doesn't work

[Christophe TROESTLER]

Setting comment-multi-line to `t', commenting a region should “inserts no new 
terminator or starter.”  However, it is not the case.  For example, selecting 
two lines in

    int main() 
    {
      int a;
      int b;
      return(0);
    }
    
    /* Local Variables: */
    /* comment-style: multi-line */
    /* comment-multi-line: t */
    /* End: */

yields

      /* int a;
       * int b; */

while it should be

      /* int a;
         int b; */

Best,
C.


In GNU Emacs 26.1 (build 2, x86_64-pc-linux-gnu, GTK+ Version 3.24.11)
 of 2019-09-09, modified by Debian built on x86-ubc-02
Windowing system distributor 'The X.Org Foundation', version 11.0.12004000
System Description:     Debian GNU/Linux bullseye/sid

Recent messages:
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Configured using:
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Configured features:
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ACL LIBSELINUX GNUTLS LIBXML2 FREETYPE M17N_FLT LIBOTF XFT ZLIB
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Important settings:
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/home/trch/.emacs.d/elpa/debian-el-20181020.1513/apt-sources hides 
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/home/trch/.emacs.d/elpa/debian-el-20181020.1513/debian-autoloads hides 
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