Tell if parameter is mandatory when showing help.

diff --git a/src/main/java/eu/svjatoslav/commons/commandline/parameterparser/Parameter.java b/src/main/java/eu/svjatoslav/commons/commandline/parameterparser/Parameter.java
index 32e9594..95df0c0 100755 (executable)
--- a/src/main/java/eu/svjatoslav/commons/commandline/parameterparser/Parameter.java
+++ b/src/main/java/eu/svjatoslav/commons/commandline/parameterparser/Parameter.java
@@ -116,7 +116,11 @@ public abstract class Parameter<T, I extends Parameter> {
         // first line
         buffer.append(getAliases());
         if (!argumentCount.equals(ArgumentCount.NONE)) {
-            buffer.append(" (" + describeFormat() + ")");
+            buffer
+                    .append(" (")
+                    .append(isMandatory() ? "mandatory, " : "")
+                    .append(describeFormat())
+                    .append(")");
 
             if (argumentCount.equals(ArgumentCount.MULTI))
                 buffer.append("...");