[Bug 2052982] Re: regression in debconf-copydb when writing to stdout

[Dan Bungert]

** Bug watch added: Debian Bug tracker #1063817
   https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1063817

** Also affects: debconf (Debian) via
   https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1063817
   Importance: Unknown
       Status: Unknown

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https://bugs.launchpad.net/bugs/2052982

Title:
  regression in debconf-copydb when writing to stdout

Status in debconf package in Ubuntu:
  Fix Committed
Status in ubiquity package in Ubuntu:
  Invalid
Status in debconf package in Debian:
  Unknown

Bug description:
  While debugging a FTBFS in Ubiquity, I observed that the usage of
  debconf-copydb regressed when using version 1.5.85 of debconf.  The
  previous-in-ubuntu version 1.5.82 of debconf was OK.

  That invocation looks roughly like:
  debconf-copydb templatedb pipe --config=Name:pipe --config=Driver:Pipe --config=InFd:none ...

  Bisecting debconf from there found commit 5db857ade00953496bfdb7edb884296bebc41885:
  "Avoid two-argument open"

  Further tracing found the following change to Debconf/DbDriver/Pipe.pm around line 120:
  - open ($fh, '>-');
  + open ($fh, '>', \*STDOUT);

  An additional symptom of this problem is GLOB files with names that look like:
  GLOB(0x0123456789ab)

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