Improve `license-maven-plugin` error message
@@ -493,6 +493,7 @@ Copyright ${inceptionYear}-${currentYear} the original author or authors.
<mapping>
<java>SLASHSTAR_STYLE</java>
</mapping>
+ <errorMessage>Some files do not have the expected license header. Run license:format to update them.</errorMessage>
</configuration>
<executions>
<execution>
