Details
Major Description
Currently, most of FlinkCDC's command line arguments are supported in the format `--$KEY $VALUE` or `--$KEY=$VALUE`, e.g. --jar, but, except for flink home, which only supports space spacing. Users who use the `--flink-home=$FLINK_HOME` format on the command line (trying to be consistent with the other = spacing arguments) will not be able to set flink home correctly.
In particular, when there is an environment variable $FLINK_HOME and you want to override it by setting --flink-home=/path/to/new/flink/home, you will find that it does not work.
We would like to support the flink-home parameter in both --flink-home $FLINK_HOME and --flink-home=$FLINK_HOME formats, so that users can avoid formatting differences and runtime exceptions when using command line arguments.