History is per line instead of per command

[javanna]

The history stores every single line as a different command. After typing a multiline command, or a json object for example, every line is a different entry in the history. Would be nice to be able to run that same command in a single call; that would be possible if all lines were merged to the same entry within the history.

Seems to be a JLine limitation; there are possible work arounds and examples in other projects, here is one: https://github.com/apache/karaf/blob/karaf-2.3.x/shell/console/src/main/java/org/apache/karaf/shell/console/jline/Console.java#L227