factor out getting list of architectures from comma list

Beside fixing this minor code duplication it also resolves the problem
of messing up vim syntax-highlighting.

Git-Dch: Ignore

test/integration/framework

@@ -259,6 +259,10 @@ getarchitectures() {
 	echo "$(aptconfig dump | grep APT::Architecture | cut -d'"' -f 2 | sed '/^$/ d' | sort | uniq | tr '\n' ' ')"
 }
 
+getarchitecturesfromcommalist() {
+	echo "$1" | sed -e 's#,#\n#g' | sed -e "s/^native\$/$(getarchitecture 'native')/"
+}
+
 configarchitecture() {
 	{
 		echo "APT::Architecture \"$(getarchitecture $1)\";"
@@ -432,7 +436,7 @@ Package: $NAME" >> ${BUILDDIR}/debian/control
 #		fi
 	done
 
-	for arch in $(echo "$ARCH" | sed -e 's#,#\n#g' | sed -e "s#^native\$#$(getarchitecture 'native')#"); do
+	for arch in $(getarchitecturesfromcommalist "$ARCH"); do
 		rm -rf ${BUILDDIR}/debian/tmp
 		mkdir -p ${BUILDDIR}/debian/tmp/DEBIAN ${BUILDDIR}/debian/tmp/usr/share/doc/${NAME} ${BUILDDIR}/debian/tmp/usr/bin
 		cp ${BUILDDIR}/debian/copyright ${BUILDDIR}/debian/changelog ${BUILDDIR}/FEATURES ${BUILDDIR}/debian/tmp/usr/share/doc/${NAME}
@@ -587,7 +591,7 @@ insertpackage() {
  something went horribly wrong! They are autogenerated
  und used only by testcases and surf no other propose…"}"
 	local ARCHS=""
-	for arch in $(echo "$ARCH" | sed -e 's#,#\n#g' | sed -e "s#^native\$#$(getarchitecture 'native')#"); do
+	for arch in $(getarchitecturesfromcommalist "$ARCH"); do
 		if [ "$arch" = 'all' -o "$arch" = 'none' ]; then
 			ARCHS="$(getarchitectures)"
 		else
@@ -649,7 +653,7 @@ insertinstalledpackage() {
 
 	local FILE='rootdir/var/lib/dpkg/status'
 	local INFO='rootdir/var/lib/dpkg/info'
-	for arch in $(echo "$ARCH" | sed -e 's#,#\n#g' | sed -e "s#^native\$#$(getarchitecture 'native')#"); do
+	for arch in $(getarchitecturesfromcommalist "$ARCH"); do
 		echo "Package: $NAME
 Status: $STATUS
 Priority: $PRIORITY
@@ -943,8 +947,7 @@ acquire::cdrom::autodetect 0;" > rootdir/etc/apt/apt.conf.d/00cdrom
 
 downloadfile() {
 	local PROTO="$(echo "$1" | cut -d':' -f 1 )"
-	apthelper -o Acquire::https::CaInfo=${TESTDIR}/apt.pem \
-		-o Debug::Acquire::${PROTO}=1 \
+	apthelper -o Debug::Acquire::${PROTO}=1 \
 		download-file "$1" "$2" 2>&1 || true
 	# only if the file exists the download was successful
 	if [ -e "$2" ]; then