Minor fixup.

Author: nedtwigg

lib/src/main/java/com/diffplug/spotless/Formatter.java

@@ -141,7 +141,7 @@ static void legacyErrorBehavior(Formatter formatter, File file, ValuePerStep<Thr
 		for (int i = 0; i < formatter.getSteps().size(); ++i) {
 			Throwable exception = exceptionPerStep.get(i);
 			if (exception != null && exception != LintState.formatStepCausedNoChange()) {
-				logger.error("Step '{}' found problem in '{}':\n{}", formatter.getSteps().get(i), file.getName(), exception.getMessage(), exception);
+				logger.error("Step '{}' found problem in '{}':\n{}", formatter.getSteps().get(i).getName(), file.getName(), exception.getMessage(), exception);
 				throw ThrowingEx.asRuntimeRethrowError(exception);
 			}
 		}

lib/src/main/java/com/diffplug/spotless/LintState.java

@@ -55,9 +55,9 @@ public LinkedHashMap<String, List<Lint>> getLintsByStep(Formatter formatter) {
 		}
 		LinkedHashMap<String, List<Lint>> result = new LinkedHashMap<>();
 		for (int i = 0; i < lintsPerStep.size(); i++) {
-			FormatterStep step = formatter.getSteps().get(i);
 			List<Lint> lints = lintsPerStep.get(i);
 			if (lints != null) {
+				FormatterStep step = formatter.getSteps().get(i);
 				result.put(step.getName(), lints);
 			}
 		}