MINOR: Check invalid bootstrap-server, alter option and config flags before checking for the required --partitions flag (#6786)

Reviewers: Manikumar Reddy <manikumar.reddy@gmail.com>

core/src/main/scala/kafka/admin/TopicCommand.scala

@@ -635,12 +635,13 @@ object TopicCommand extends Logging {
         CommandLineUtils.checkRequiredArgs(parser, options, topicOpt)
       if (has(createOpt) && !has(replicaAssignmentOpt))
         CommandLineUtils.checkRequiredArgs(parser, options, partitionsOpt, replicationFactorOpt)
-      if (has(bootstrapServerOpt) && has(alterOpt))
+      if (has(bootstrapServerOpt) && has(alterOpt)) {
+        CommandLineUtils.checkInvalidArgsSet(parser, options, Set(bootstrapServerOpt, configOpt), Set(alterOpt))
         CommandLineUtils.checkRequiredArgs(parser, options, partitionsOpt)
+      }
 
       // check invalid args
       CommandLineUtils.checkInvalidArgs(parser, options, configOpt, allTopicLevelOpts -- Set(alterOpt, createOpt))
-      CommandLineUtils.checkInvalidArgsSet(parser, options, Set(bootstrapServerOpt, configOpt), Set(alterOpt))
       CommandLineUtils.checkInvalidArgs(parser, options, deleteConfigOpt, allTopicLevelOpts -- Set(alterOpt) ++ Set(bootstrapServerOpt))
       CommandLineUtils.checkInvalidArgs(parser, options, partitionsOpt, allTopicLevelOpts -- Set(alterOpt, createOpt))
       CommandLineUtils.checkInvalidArgs(parser, options, replicationFactorOpt, allTopicLevelOpts -- Set(createOpt))