Gratuitous blank line in session output

Describe the issue you are having

Multi-line session output that writes in the rightmost (⎕PW) position outputs an additional blank line.

Did you connect to an already running interpreter or start the interpreter from RIDE?

N/A

How do you reproduce the issue?

      )xload dfns
... saved ..
      ]map
...

Notice how the display now inserts an extra blank line following any full-width output line, This was not the case with previous versions.

Plaudit: Mac/Dyalog remembers my preferred font size and ⎕PW between sessions. This is soooo cool. Thank you.

Paste the contents of Help → About (Shift+F1)

IDE: Version: 4.1.2906 Platform: MacIntel Date: 2017-08-03 09:43:13 +0100 Git commit: e904a9eb51a9a01b21f809e2b0e0e889ea48c825 Preferences:{ "autocompletion":"0", "fold":"0", "indentOnOpen":"0", "kbdLocale":"en_US_Mac", "lineNums":"0", "pfkeys":"[\"\",\"\",\"\",\"\",\"\",\"wsdiff''\",\"\",\"\",\"\",\"\",\")reset)save\",\"\",\"\"]", "squiggleTips":"0", "valueTips":"0", "zoom":"6" }

Interpreter: Version: 16.0.30646 Platform: Mac-64 Edition: Unicode/64 Date: Aug 7 2017 at 02:47:08

Dyalog / ride