avoid printing too long argument lists during FlowNode visualization

[ArturHarasimiuk]

In some cases it is possible that node argument will be impossible to
wrap properly and is displayed as single line. In this case pipeline
steps view becomes hard to read because right most columns are moved
beyond the screen. this requires scrolling which is not so convenient.
Also status colum is outside of screen.

This change cuts arguments list to 80 characters which should be fine
for most of usages.

Signed-off-by: Artur Harasimiuk artur.harasimiuk@intel.com

[svanoort]

Thanks for the contribution, but I'm afraid this isn't the right way to handle this -- this truncates all Strings and means we do not get the full String content.

If you wish to limit the amount displayed, that should be done in the UI (wrap could also be implemented there, as needed). That would be either Blue Ocean plugin or Stage View (or potentially in the Steps view within workflow-support visualization.table under the resources folder).

[ArturHarasimiuk]

thanks for comment. I created new PR: jenkinsci/workflow-support-plugin#71