jp: replace no_lf argument by end in disp (same as in print)

sat_frontends/jp/cmd_debug.py

@@ -203,10 +203,14 @@ class Theme(base.CommandBase):
             color = getattr(C, attr)
             if attr == 'A_LEVEL_COLORS':
                 # This constant contains multiple colors
-                self.disp('LEVEL COLORS: ', no_lf=True)
+                self.disp('LEVEL COLORS: ', end=' ')
                 for idx, c in enumerate(color):
                     last = idx == len(color)-1
-                    self.disp(c + f'LEVEL_{idx}' + A.RESET + (', ' if not last else ''), no_lf=not last)
+                    end = '\n' if last else ' '
+                    self.disp(
+                        c + f'LEVEL_{idx}' + A.RESET + (', ' if not last else ''),
+                        end=end
+                    )
             else:
                 text = attr[2:]
                 self.disp(A.color(color, text))