[Bug 1168982] [NEW] update-grub uses gawk but doesnt depend on gawk

[don bright]

Public bug reported:

while running update-grub or grub-mkconfig the program tries to call
'gawk'.

however the grub packages dont depend on gawk so gawk is not installed.

so we get this error, in this case when looking for a BSD partition

### BEGIN /etc/grub.d/30_os-prober ###
/usr/lib/os-probes/mounted/90bsd-distro: 17: /usr/lib/os-probes/mounted/90bsd-distro: gawk: not found
. . .

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: grub2-common 1.99-21ubuntu3.9
ProcVersionSignature: Ubuntu 3.5.0-23.35~precise1-generic 3.5.7.2
Uname: Linux 3.5.0-23-generic i686
ApportVersion: 2.0.1-0ubuntu17.1
Architecture: i386
Date: Sun Apr 14 17:22:46 2013
InstallationMedia: Ubuntu 12.04.2 LTS "Precise Pangolin" - Release i386 (20130213)
MarkForUpload: True
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: grub2
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: grub2 (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: apport-bug i386 precise running-unity

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https://bugs.launchpad.net/bugs/1168982

Title:
  update-grub uses gawk but doesnt depend on gawk

Status in “grub2” package in Ubuntu:
  New

Bug description:
  while running update-grub or grub-mkconfig the program tries to call
  'gawk'.

  however the grub packages dont depend on gawk so gawk is not
  installed.

  so we get this error, in this case when looking for a BSD partition

  ### BEGIN /etc/grub.d/30_os-prober ###
  /usr/lib/os-probes/mounted/90bsd-distro: 17: /usr/lib/os-probes/mounted/90bsd-distro: gawk: not found
  . . .

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: grub2-common 1.99-21ubuntu3.9
  ProcVersionSignature: Ubuntu 3.5.0-23.35~precise1-generic 3.5.7.2
  Uname: Linux 3.5.0-23-generic i686
  ApportVersion: 2.0.1-0ubuntu17.1
  Architecture: i386
  Date: Sun Apr 14 17:22:46 2013
  InstallationMedia: Ubuntu 12.04.2 LTS "Precise Pangolin" - Release i386 (20130213)
  MarkForUpload: True
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: grub2
  UpgradeStatus: No upgrade log present (probably fresh install)

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