Don't attempt line break at last line

- This fixes issue in Display which should not
  do a line break on fullscreen mode for a last
  line causing scrolling and making screen of
  by one line.
- Fixes #963

terminal/src/main/java/org/jline/utils/Display.java

@@ -308,8 +308,10 @@ public void update(List<AttributedString> newLines, int targetCursorPos, boolean
                 }
             } else if (atRight) {
                 if (this.wrapAtEol) {
-                    terminal.writer().write(" \b");
-                    cursorPos++;
+                    if (!fullScreen || (fullScreen && lineIndex < numLines)) {
+                        terminal.writer().write(" \b");
+                        cursorPos++;
+                    }
                 } else {
                     terminal.puts(Capability.carriage_return); // CR / not newline.
                     cursorPos = curCol;