fixup! chg: generate, cleanup: Use 28 days of measurements

sbws/core/generate.py

@@ -60,11 +60,9 @@ def gen_parser(sub):
                    help="Number of most significant digits to round bw.")
     p.add_argument('-p', '--secs-recent', default=None, type=int,
                    help="How many secs in the past are results being "
-                        "still considered. Default is {}. If not scaling as "
-                        "Torflow the default is data_period in the "
-                        "configuration.".format(
-                            ceil(GENERATE_PERIOD / 24 / 60 / 60))
-                   )
+                        "still considered. Default is {} secs. If not scaling "
+                        "as Torflow the default is data_period in the "
+                        "configuration.".format(GENERATE_PERIOD))
     p.add_argument('-a', '--secs-away', default=DAY_SECS, type=int,
                    help="How many secs results have to be away from each "
                         "other.")