Add trailing whitespace to line

spec/text-editor-spec.coffee

@@ -3412,6 +3412,9 @@ describe "TextEditor", ->
     describe "when no text is selected", ->
       describe "when the line below isn't empty", ->
         it "joins the line below with the current line separated by a space and moves the cursor to the start of line that was moved up", ->
+          editor.setCursorBufferPosition([0, Infinity])
+          editor.insertText('  ')
+          editor.setCursorBufferPosition([0])
           editor.joinLines()
           expect(editor.lineTextForBufferRow(0)).toBe 'var quicksort = function () { var sort = function(items) {'
           expect(editor.getCursorBufferPosition()).toEqual [0, 29]