Merge branch 'answer_set_formatting' of https://github.com/alpha-asp/…

…Alpha into answer_set_formatting

src/main/java/at/ac/tuwien/kr/alpha/config/CommandLineParser.java

@@ -130,7 +130,7 @@ public class CommandLineParser {
 					+ SystemConfig.DEFAULT_GROUNDER_ACCUMULATOR_ENABLED + ")")
 			.build();
 	private static final Option OPT_OUTPUT_ATOM_SEPARATOR = Option.builder("sep").longOpt("atomSeparator").hasArg(true).argName("separator")
-			.desc("a character (sequence) to use s separator for atoms in printed answer sets. (default: "
+			.desc("a character (sequence) to use as separator for atoms in printed answer sets (default: "
 					+ SystemConfig.DEFAULT_ATOM_SEPARATOR + ")")
 			.build();
 	//@formatter:on