change 'isShortSrvHost' to 'srvHostHasLessThanThreeParts' and remove …

…redundant code comment as per code review comment

driver-core/src/main/com/mongodb/internal/dns/DefaultDnsResolver.java

@@ -70,9 +70,9 @@ public List<String> resolveHostFromSrvRecords(final String srvHost, final String
  List<String> srvHostParts = asList(srvHost.split("\\."));
 
  String srvHostDomain;
- boolean isShortSrvHost = srvHostParts.size() < 3;
- if (isShortSrvHost) {
- srvHostDomain = srvHost; // when dot separated parts less than 3, domain name is the host per se
+ boolean srvHostHasLessThanThreeParts = srvHostParts.size() < 3;
+ if (srvHostHasLessThanThreeParts) {
+ srvHostDomain = srvHost;
  } else {
  srvHostDomain = srvHost.substring(srvHost.indexOf('.') + 1);
  }
@@ -89,7 +89,7 @@ public List<String> resolveHostFromSrvRecords(final String srvHost, final String
  for (String srvRecord : srvAttributeValues) {
  String[] split = srvRecord.split(" ");
  String resolvedHost = split[3].endsWith(".") ? split[3].substring(0, split[3].length() - 1) : split[3];
- if (isShortSrvHost && resolvedHost.equals(srvHost)) {
+ if (srvHostHasLessThanThreeParts && resolvedHost.equals(srvHost)) {
  throw new MongoConfigurationException(
  format("The SRV host name '%s' has less than three parts and the resolved host '%s' is identical.",
  srvHost, resolvedHost)