Make --language option mandatory

src/main/java/io/github/felsenhower/stine_calendar_bot/main/CallLevelWrapper.java

@@ -78,7 +78,7 @@ public CallLevelWrapper(String[] args) throws IOException {
 					}
 				}
 			} else {
-				strings = new StringProvider(new Locale(Locale.getDefault().getLanguage()));
+				strings = new StringProvider(Locale.ENGLISH);
 			}
 		} catch (Exception e) {
 			strings = new StringProvider(Locale.ENGLISH);
@@ -103,7 +103,7 @@ public CallLevelWrapper(String[] args) throws IOException {
 			if (cmd.hasOption("help") || (cmd.hasOption("language") && cmd.getOptions().length == 1)) {
 				printHelp();
 			}
-			
+
 			cmd = parser.parse(this.options, args, false);
 
 			username = cmd.getOptionValue("user");
@@ -255,11 +255,12 @@ private Options getOptions() {
 
 			options.addOption(Option.builder("l")
 					                .longOpt("language")
+					                .required()
 					                .hasArg()
 					                .argName("en|de")
 					                .desc(cliStrings.get("LangDescription"))
 					                .build());
-			
+
 			options.addOption(Option.builder("u")
 					                .longOpt("user")
 					                .required()
@@ -299,6 +300,11 @@ private Options getOptions() {
 			// @formatter:off
 			options.addOption(Option.builder("l").longOpt("language").hasArg().build());
 			options.addOption(Option.builder("h").longOpt("help").build());
+			options.addOption(Option.builder("u").longOpt("user").hasArg().argName("user").build());
+			options.addOption(Option.builder("p").longOpt("pass").hasArg().argName("pass").build());
+			options.addOption(Option.builder("e").longOpt("echo").build());
+			options.addOption(Option.builder("c").longOpt("cache-dir").hasArg().argName("dir").build());
+			options.addOption(Option.builder("o").longOpt("output").hasArg().argName("file").build());
 			// @formatter:on
 		}
 		return options;

src/main/resources/io/github/felsenhower/stine_calendar_bot/HumanReadable/CallLevel.properties

@@ -1,7 +1,6 @@
 AppName=stine_calendar_bot
 HelpDescription=Print this message.
-LangDescription=Select the language.\n\
-	If not specified, your system language will be used.
+LangDescription=Select the language.
 Usage=Usage: 
 UserDescription=Username for STiNE.
 PassDescription=Password for STiNE. Use -- for stdin.

src/main/resources/io/github/felsenhower/stine_calendar_bot/HumanReadable/CallLevel_de.properties

@@ -1,6 +1,5 @@
 HelpDescription=Diese Nachricht anzeigen.
-LangDescription=Die Sprache ausw\u00e4hlen.\n\
-	Wenn nicht angegeben, wird die Systemsprache ausgew\u00e4hlt.
+LangDescription=Die Sprache ausw\u00e4hlen.
 UserDescription=Benutzername f\u00fcr STiNE.
 PassDescription=Passwort f\u00fcr STiNE. Benutze -- f\u00fcr stdin.
 EchoDescription=W\u00e4hrend des Browsings alle Seiteninhalte auf stdout ausgeben.