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KAFKA-19488: Update the docs of "if-not-exists" (#20133) 

"the action will only execute" is incorrect, as the admin still sends
the request. The "if-not-exists" flag is actually used to swallow the
exception

Reviewers: TengYao Chi <frankvicky@apache.org>, Nick Guo
<lansg0504@gmail.com>, Ken Huang <s7133700@gmail.com>
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Xuan-Zhang Gong 2025-07-10 10:26:06 +08:00 committed by GitHub
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tools/src/main/java/org/apache/kafka/tools/TopicCommand.java
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@ -810,7 +810,7 @@ public abstract class TopicCommand {
ifExistsOpt = parser.accepts("if-exists",
"If set when altering or deleting or describing topics, the action will only execute if the topic exists.");
ifNotExistsOpt = parser.accepts("if-not-exists",
"If set when creating topics, the action will only execute if the topic does not already exist.");
"If set when creating topics, the create request will not fail if the topic already exists, but the request will still be sent.");
excludeInternalTopicOpt = parser.accepts("exclude-internal",
"Exclude internal topics when listing or describing topics. By default, the internal topics are included.");
partitionSizeLimitPerResponseOpt = parser.accepts("partition-size-limit-per-response",