scripts: run all scripts with -e

Run all scripts with -e so they exit as soon as something breaks. That
way the build stops at the first error, not some other error.

Signed-off-by: Anton Lundin <glance@acc.umu.se>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>

Documentation/make_POT.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/bash -e
 #
 # Author(s): Guillaume GARDET <guillaume.gardet@free.fr>
 #

Documentation/make_PO_to_ASCIIDOC.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/bash -e
 #
 # Author(s): Guillaume GARDET <guillaume.gardet@free.fr>
 #

packaging/macosx/sign

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/bash -e
 # Hash is 3A8CE62A483083EDEA5581A61E770EC1FA8BECE8 but it doesn't seem to
 # find the key by hash
 

packaging/macosx/subsurface.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/bash -e
 
 if test "x$GTK_DEBUG_LAUNCHER" != x; then
     set -x

packaging/ubuntu/make-package.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/bash -e
 # start from the directory above the combined subsurface & subsurface/libdivecomputer directory
 #
 # in order to be able to make changes to the debian/* files without changing the source

packaging/windows/mxe-based-build.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/bash -e
 
 # build Subsurface for Win32
 #

scripts/build.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/bash -e
 #
 # this should be run from the src directory, the layout is supposed to
 # look like this: