[Fug / Improvement] Please Improve error message on invalid passed reckon.scope

[childnode]

since -Preckon.stage=sdf provides a helpful hint

* What went wrong:
> Stage "sdf" is not one of: [rc, final]

-Preckon.scope=sdf only provides message

> No enum constant org.ajoberstar.reckon.core.Scope.SDF

instead of expected

> Scope "sdf" is not one of: [patch, minor, major]

[childnode]

reckon/reckon-core/src/main/java/org/ajoberstar/reckon/core/strategy/StagePreReleaseStrategy.java

Line 54 in b23e291

String message = String.format("Stage \"%s\" is not one of: %s", stage, stages);

reckon/reckon-core/src/main/java/org/ajoberstar/reckon/core/strategy/ScopeNormalStrategy.java

Line 40 in b23e291

.map(Scope::valueOf);

[ajoberstar]

Agreed. Thanks for pointing this out!