Commits on Jan 25, 2024

1. echo: remove non-standard -? …

   * Sometimes echo is built into the shell
   * Standards document for echo doesn't mention the -? flag [1]
   * Versions of echo that I tested don't support it
   * I think it's better to follow convention
   * Sync pod and fix a typo in DESCRIPTION
   
   1. https://pubs.opengroup.org/onlinepubs/009604599/utilities/echo.html
   
   # bash builtin
   % builtin echo $BASH_VERSION
   5.1.4(1)-release
   % builtin echo -?
   -?
   % builtin echo --version
   --version
   
   # gnu echo
   % /bin/echo -?
   -?
   % /bin/echo --version
   echo (GNU coreutils) 8.32
   
   # pdksh builtin
   % builtin echo -?
   -?
   % builtin echo --version
   --version
   % builtin echo $KSH_VERSION
   @(#)PD KSH v5.2.14 99/07/13.2
   
   # openbsd echo
   % /bin/echo -?
   -?
   % /bin/echo --version
   --version

   

   mknos authored Jan 25, 2024
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