liquibase-core/src/main/java/liquibase/integration/commandline/Main.java
protected String[] fixupArgs(String[] args) {
        List<String> fixedArgs = new ArrayList<>();

        for (int i = 0; i < args.length; i++) {
            String arg = args[i];
            if ((arg.startsWith("--") || arg.startsWith("-D")) && !arg.contains("=")) {
                String nextArg = null;
                if ((i + 1) < args.length) {
                    nextArg = args[i + 1];
                }
                if ((nextArg != null) && !nextArg.startsWith("--") && !isCommand(nextArg)) {
                    arg = arg + "=" + nextArg;
                    i++;
                }
            }

            // Sometimes, commas are still escaped as \, at this point, fix it:
            arg = arg.replace("\\,", ",");
            fixedArgs.add(arg);
        }

        return fixedArgs.toArray(new String[fixedArgs.size()]);
    }
protected String[] fixupArgs(String[] args) {
        List<String> fixedArgs = new ArrayList<>();

        for (int i = 0; i < args.length; i++) {
            String arg = args[i];
            if ((arg.startsWith("--") || arg.startsWith("-D")) && !arg.contains("=")) {
                String nextArg = null;
                if ((i + 1) < args.length) {
                    nextArg = args[i + 1];
                }
                if ((nextArg != null) && !nextArg.startsWith("--") && !isCommand(nextArg)) {
                    arg = arg + "=" + nextArg;
                    i++;
                }
            }

            // Sometimes, commas are still escaped as \, at this point, fix it:
            arg = arg.replace("\\,", ",");
            fixedArgs.add(arg);
        }

        return fixedArgs.toArray(new String[fixedArgs.size()]);
    }
On windows machines, it splits args on '=' signs.  Put it back like it was.