[Bug 1529152] [NEW] slow completion for systemd units

[Karl-Philipp Richter]

Public bug reported:

Pressing <kbd>Tab</kbd> after entering `sudo systemctl status [existing
service name without .service suffix]` into console it takes up to 5
seconds until the auto-completion completes. Until then the cursor can't
be moved.

ProblemType: Bug
DistroRelease: Ubuntu 15.10
Package: bash-completion 1:2.1-4.1ubuntu2
Uname: Linux 4.2.5-040205-generic x86_64
NonfreeKernelModules: zfs zunicode zcommon znvpair zavl
ApportVersion: 2.19.1-0ubuntu5
Architecture: amd64
Date: Thu Dec 24 21:04:41 2015
InstallationDate: Installed on 2015-04-20 (248 days ago)
InstallationMedia: Ubuntu-Server 14.10 "Utopic Unicorn" - Release amd64 (20141022.2)
PackageArchitecture: all
ProcEnviron:
 TERM=screen
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
SourcePackage: bash-completion
UpgradeStatus: Upgraded to wily on 2015-10-26 (59 days ago)

** Affects: bash-completion (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug wily

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https://bugs.launchpad.net/bugs/1529152

Title:
  slow completion for systemd units

Status in bash-completion package in Ubuntu:
  New

Bug description:
  Pressing <kbd>Tab</kbd> after entering `sudo systemctl status
  [existing service name without .service suffix]` into console it takes
  up to 5 seconds until the auto-completion completes. Until then the
  cursor can't be moved.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: bash-completion 1:2.1-4.1ubuntu2
  Uname: Linux 4.2.5-040205-generic x86_64
  NonfreeKernelModules: zfs zunicode zcommon znvpair zavl
  ApportVersion: 2.19.1-0ubuntu5
  Architecture: amd64
  Date: Thu Dec 24 21:04:41 2015
  InstallationDate: Installed on 2015-04-20 (248 days ago)
  InstallationMedia: Ubuntu-Server 14.10 "Utopic Unicorn" - Release amd64 (20141022.2)
  PackageArchitecture: all
  ProcEnviron:
   TERM=screen
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=de_DE.UTF-8
   SHELL=/bin/bash
  SourcePackage: bash-completion
  UpgradeStatus: Upgraded to wily on 2015-10-26 (59 days ago)

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