[Bug 2083131] Re: Bash's builtin command "printf" has a grave functionality bug - fails to print the format like "%.2f .1"

[Steven Shiau]

** Description changed:

  As reported in the upstream Debian Linux:
  https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1078556
- Bash's builtin command "printf" has a grave functionality bug - fails to print the format like "printf %.2f .1".
+ Bash's builtin command "printf" has a grave functionality bug - fails to print the format like "%.2f .1".
  
  # bash --version
  GNU bash, version 5.2.32(1)-release (x86_64-pc-linux-gnu)
  Copyright (C) 2022 Free Software Foundation, Inc.
  License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
  
  This is free software; you are free to change and redistribute it.
  There is NO WARRANTY, to the extent permitted by law.
  
  # printf "%.2f\n" 0.1
  nan
  
  As mentioned in the above URL, upstream's configure-strtold-check patch:
  https://bugs.debian.org/cgi-bin/bugreport.cgi?att=1;bug=1078556;filename=configure-strtold-check;msg=20

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https://bugs.launchpad.net/bugs/2083131

Title:
  Bash's builtin command "printf" has a grave functionality bug - fails
  to print the format like "%.2f .1"

Status in bash package in Ubuntu:
  New

Bug description:
  As reported in the upstream Debian Linux:
  https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1078556
  Bash's builtin command "printf" has a grave functionality bug - fails to print the format like "%.2f .1".

  # bash --version
  GNU bash, version 5.2.32(1)-release (x86_64-pc-linux-gnu)
  Copyright (C) 2022 Free Software Foundation, Inc.
  License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>

  This is free software; you are free to change and redistribute it.
  There is NO WARRANTY, to the extent permitted by law.

  # printf "%.2f\n" 0.1
  nan

  As mentioned in the above URL, upstream's configure-strtold-check patch:
  https://bugs.debian.org/cgi-bin/bugreport.cgi?att=1;bug=1078556;filename=configure-strtold-check;msg=20

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