set version before updating po files

This way the 'correct' version is carried over into the po files to
reflect which version they were built for rather than the version before
the current one.

Git-Dch: Ignore

prepare-release

@@ -52,14 +52,14 @@ if [ "$1" = 'pre-export' ]; then
 		VERSION="$VERSION~$(date +%Y%m%d)"
 	fi
 
+	sed -i -e "s/^PACKAGE_VERSION=\".*\"$/PACKAGE_VERSION=\"${VERSION}\"/" configure.ac
+	sed -i -e "s/^<!ENTITY apt-product-version \".*\">$/<!ENTITY apt-product-version \"${VERSION}\">/" doc/apt-verbatim.ent
+
 	if [ "$(date +%Y-%m-%d)" != "$(grep --max-count=1 '^"POT-Creation-Date: .*\n"$' po/apt-all.pot | cut -d' ' -f 2)" -o \
 	     "$(date +%Y-%m-%d)" != "$(grep --max-count=1 '^"POT-Creation-Date: .*\n"$' doc/po/apt-doc.pot | cut -d' ' -f 2)" ]; then
 		echo >&2 'POT files are not up-to-date. Execute »make update-po« for you…'
 		make update-po
 	fi
-
-	sed -i -e "s/^PACKAGE_VERSION=\".*\"$/PACKAGE_VERSION=\"${VERSION}\"/" configure.ac
-	sed -i -e "s/^<!ENTITY apt-product-version \".*\">$/<!ENTITY apt-product-version \"${VERSION}\">/" doc/apt-verbatim.ent
 elif [ "$1" = 'post-build' ]; then
 	if [ "$DISTRIBUTION" != "UNRELEASED" ]; then
 		echo >&2 "REMEMBER: Tag this release with »git tag ${VERSION}« if you are satisfied"