all: I18N supporttesting

This adds I18N support using standard gettext system together
with an initial German translation. This can be used to search
locales in some directory:

Intl.bindtextdomain("shopsystem", "/home/sre/src/serial-barcode-scanner");

And this can be used to switch language at runtime:

Intl.setlocale(LocaleCategory.ALL, "");

1 files changed, 2 insertions, 2 deletions

diff --git a/src/invoice/single.vala b/src/invoice/single.vala
index 54cba26..6f54afe 100644
--- a/src/invoice/single.vala
+++ b/src/invoice/single.vala
@@ -48,14 +48,14 @@ public static int main(string[] args) {
 	try {
 		invoice = new InvoiceImplementation();
 	} catch(Error e) {
-		stderr.printf("Error: %s\n", e.message);
+		stderr.printf(_("Error: %s\n"), e.message);
 		return 1;
 	}
 
 	try {
 		invoice.send_invoice(temporary, timestamp, user);
 	} catch(Error e) {
-		stderr.printf("Error: %s\n", e.message);
+		stderr.printf(_("Error: %s\n"), e.message);
 		return 1;
 	}