improve javadoc for attachArtifact
diff --git a/src/main/java/org/apache/sling/maven/slingstart/PackageMojo.java b/src/main/java/org/apache/sling/maven/slingstart/PackageMojo.java
index 6922e74..efedd7e 100644
--- a/src/main/java/org/apache/sling/maven/slingstart/PackageMojo.java
+++ b/src/main/java/org/apache/sling/maven/slingstart/PackageMojo.java
@@ -55,7 +55,8 @@
/**
* If set to {@code false} does not attach the generated artifact to Maven.
- * This setting does only apply if the packaging of the current Maven project is not "slingstart".
+ * This setting takes only effect if the packaging of the current Maven project is not {@code slingstart}.
+ * Otherwise the generated artifact is always the main artifact (and is therefore always attached).
*/
@Parameter(defaultValue="true")
protected boolean attachArtifact;
