Github user alopresto commented on a diff in the pull request:

    https://github.com/apache/nifi/pull/2131#discussion_r137413455
  
    --- Diff: 
nifi-nar-bundles/nifi-grpc-bundle/nifi-grpc-processors/src/main/java/org/apache/nifi/processors/grpc/ListenGRPC.java
 ---
    @@ -82,25 +83,29 @@
         // properties
         public static final PropertyDescriptor PROP_SERVICE_PORT = new 
PropertyDescriptor.Builder()
                 .name("Local gRPC service port")
    +            .displayName("Local gRPC Service Port")
                 .description("The local port that the gRPC service will listen 
on.")
                 .required(true)
                 .addValidator(StandardValidators.PORT_VALIDATOR)
                 .build();
         public static final PropertyDescriptor PROP_USE_SECURE = new 
PropertyDescriptor.Builder()
    -            .name("Use SSL/TLS")
    -            .description("Whether or not to use SSL/TLS to send the 
contents of the gRPC messages.")
    +            .name("Use TLS")
    --- End diff --
    
    The `name` value needs to stay the same so that templates and flows which 
referenced the previous version will continue to work. If this value changes, 
existing templates and flows will not be read correctly and these values will 
be lost. This is why `displayName` was introduced. 


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