Exit without error:
===================
scripts/format-po.sh:  exit 0                        Help output

Name of man page missing: [1]
=============================
create-new-translation.sh:	exit 1               Name of man page missing
show-stats.sh:	exit 1                               Name of man page missing
scripts/create-new-translation.sh:	exit 1       Name of man page missing

No compendium specified: [2]
============================
scripts/generate-compendium.sh:	exit 1               No compendium specified

Language not found: [11]
========================
scripts/update-translations.sh:        exit 1        Language not found
scripts/generate-manpage.sh:        exit 1           Language not found
scripts/create-new-translation.sh:        exit 1     Language not found
scripts/show-needed-updates.sh:        exit 1        Language not found
scripts/format-po.sh:        exit 1                  Language not found
scripts/update-po.sh:        exit 1                  Language not found
scripts/generate-all-manpages.sh:        exit 1      Language not found
scripts/l10n_test:        exit 1                     Language not found

Target directory not found: [12]
================================
scripts/update-translations.sh:    exit 2            Target directory not found
scripts/generate-manpage.sh:    exit 2               Target directory not found
scripts/create-new-translation.sh:    exit 2         Target directory not found
scripts/show-needed-updates.sh:    exit 2            Target directory not found
scripts/format-po.sh:    exit 2                      Target directory not found
scripts/update-po.sh:    exit 2                      Target directory not found
scripts/generate-all-manpages.sh:    exit 2          Target directory not found
scripts/l10n_test:    exit 2                         Target directory not found

File not found: [13]
====================
scripts/generate-compendium.sh:	exit 1               File not found
scripts/update-po.sh:	exit 1                       File not found
scripts/use-for-compendium.sh:	exit 1               File not found
update-po.sh:	exit 1                               File not found
use-for-compendium.sh:	exit 1                       File not found

POT file not found: [14]
========================
scripts/update-po.sh:	exit 1                       POT file not found
update-po.sh:	exit 1                               POT file not found

Configuration file not found: [15]
==================================
scripts/l10n_set:    exit 2                          Configuration file not found

Original man page not found: [16]                    // This exit codes seems to confuse automake, currently changed back to empty
=================================
scripts/generate-manpage.sh:    exit                 Original man page not found

Could not determine distribution: [17]
======================================
generate-all-manpages.sh:	exit 1               Could not determine distribution
scripts/generate-all-manpages.sh:	exit 1       Could not determine distribution

pt_BR/list-manpages.sh:        exit 1