Public bug reported:

/etc/profile, which is read by the Bourne-like shells (including ksh),
runs the scripts in /etc/profile.d.  The scripts from the cloud-init
package Z99-cloudinit-warnings.sh and Z99-cloud-locale-test.sh
use the bash-builtin "local" which is not recognized by ksh resulting
in these errors at login:

/etc/profile[23]: .[141]: local: not found [No such file or directory]
/etc/profile[23]: .[142]: local: not found [No such file or directory]
/etc/profile[23]: .[143]: local: not found [No such file or directory]
/etc/profile[23]: .[178]: local: not found [No such file or directory]
/etc/profile[23]: .[179]: local: not found [No such file or directory]

$ grep -n local\  Z99*
Z99-cloudinit-warnings.sh:7:    local warning="" idir="/var/lib/cloud/instance" 
n=0
Z99-cloudinit-warnings.sh:8:    local warndir="$idir/warnings"
Z99-cloudinit-warnings.sh:9:    local ufile="$HOME/.cloud-warnings.skip" 
sfile="$warndir/.skip"
Z99-cloud-locale-test.sh:14:    local bad_names="" bad_lcs="" key="" val="" 
var="" vars="" bad_kv=""
Z99-cloud-locale-test.sh:15:    local w1 w2 w3 w4 remain
Z99-cloud-locale-test.sh:56:    local bad invalid="" to_gen="" 
sfile="/usr/share/i18n/SUPPORTED"
Z99-cloud-locale-test.sh:57:    local pkgs=""
Z99-cloud-locale-test.sh:70:    local pkgs=""

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: cloud-init 18.2-27-g6ef92c98-0ubuntu1~18.04.1
ProcVersionSignature: Ubuntu 4.15.0-29.31-generic 4.15.18
Uname: Linux 4.15.0-29-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.2
Architecture: amd64
CloudName: Other
Date: Tue Jul 31 20:04:30 2018
PackageArchitecture: all
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/ksh
SourcePackage: cloud-init
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: cloud-init (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug bionic uec-images

** Description changed:

  /etc/profile, which is read by the Bourne-like shells (including ksh),
  runs the scripts in /etc/profile.d.  The scripts from the cloud-init
  package Z99-cloudinit-warnings.sh and Z99-cloud-locale-test.sh
  use the bash-builtin "local" which is not recognized by ksh resulting
  in these errors at login:
  
  /etc/profile[23]: .[141]: local: not found [No such file or directory]
  /etc/profile[23]: .[142]: local: not found [No such file or directory]
  /etc/profile[23]: .[143]: local: not found [No such file or directory]
  /etc/profile[23]: .[178]: local: not found [No such file or directory]
  /etc/profile[23]: .[179]: local: not found [No such file or directory]
  
  $ grep -n local\  Z99*
  Z99-cloudinit-warnings.sh:7:    local warning="" 
idir="/var/lib/cloud/instance" n=0
  Z99-cloudinit-warnings.sh:8:    local warndir="$idir/warnings"
  Z99-cloudinit-warnings.sh:9:    local ufile="$HOME/.cloud-warnings.skip" 
sfile="$warndir/.skip"
  Z99-cloud-locale-test.sh:14:    local bad_names="" bad_lcs="" key="" val="" 
var="" vars="" bad_kv=""
  Z99-cloud-locale-test.sh:15:    local w1 w2 w3 w4 remain
  Z99-cloud-locale-test.sh:56:    local bad invalid="" to_gen="" 
sfile="/usr/share/i18n/SUPPORTED"
  Z99-cloud-locale-test.sh:57:    local pkgs=""
  Z99-cloud-locale-test.sh:70:    local pkgs=""
  
  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: cloud-init 18.2-27-g6ef92c98-0ubuntu1~18.04.1
  ProcVersionSignature: Ubuntu 4.15.0-29.31-generic 4.15.18
  Uname: Linux 4.15.0-29-generic x86_64
  ApportVersion: 2.20.9-0ubuntu7.2
  Architecture: amd64
  CloudName: Other
  Date: Tue Jul 31 20:04:30 2018
  PackageArchitecture: all
  ProcEnviron:
-  TERM=xterm
-  PATH=(custom, no user)
-  XDG_RUNTIME_DIR=<set>
-  LANG=en_US.UTF-8
-  SHELL=/bin/bash
+  TERM=xterm
+  PATH=(custom, no user)
+  XDG_RUNTIME_DIR=<set>
+  LANG=en_US.UTF-8
+  SHELL=/bin/ksh
  SourcePackage: cloud-init
  UpgradeStatus: No upgrade log present (probably fresh install)

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https://bugs.launchpad.net/bugs/1784713

Title:
  cloud-init profile.d files use bash-specific builtin "local"

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