Fix long string formatting

Author: Janelle Law

src/test/java/io/cryostat/net/web/http/api/v2/RulesPostHandlerTest.java

@@ -227,7 +227,11 @@ void throwsIfOptionalJsonIntegerAttributesNegative() {
             headers.set(HttpHeaders.CONTENT_TYPE, HttpMimeType.JSON.mime());
 
             String invalidRule =
-                    "{\"name\":\"Invalid_Rule\",\"description\":\"AutoRulesIT automated rule\",\"eventSpecifier\":\"template=Continuous,type=TARGET\",\"targetAlias\":\"es.andrewazor.demo.Main\",\"archivalPeriodSeconds\":-60,\"preservedArchives\":10,\"maxAgeSeconds\":0}";
+                    "{\"name\":\"Invalid_Rule\","
+                    +"\"description\":\"AutoRulesIT automated rule\","
+                    +"\"eventSpecifier\":\"template=Continuous,type=TARGET\","
+                    +"\"targetAlias\":\"es.andrewazor.demo.Main\","
+                    +"\"archivalPeriodSeconds\":-60}";
             Mockito.when(params.getBody()).thenReturn(invalidRule);
 
             ApiException ex =