Fix cth_readable crash with bad lager interaction

fixed #2063

rebar.config

@@ -10,7 +10,7 @@
         {bbmustache,          "1.6.1"},
         {relx,                "3.31.0"},
         {cf,                  "0.2.2"},
-        {cth_readable,        "1.4.3"},
+        {cth_readable,        "1.4.4"},
         {eunit_formatters,    "0.5.0"}]}.
 
 {post_hooks, [{"(linux|darwin|solaris|freebsd|netbsd|openbsd)",

rebar.lock

@@ -2,7 +2,7 @@
 [{<<"bbmustache">>,{pkg,<<"bbmustache">>,<<"1.6.1">>},0},
  {<<"certifi">>,{pkg,<<"certifi">>,<<"2.5.1">>},0},
  {<<"cf">>,{pkg,<<"cf">>,<<"0.2.2">>},0},
- {<<"cth_readable">>,{pkg,<<"cth_readable">>,<<"1.4.3">>},0},
+ {<<"cth_readable">>,{pkg,<<"cth_readable">>,<<"1.4.4">>},0},
  {<<"erlware_commons">>,{pkg,<<"erlware_commons">>,<<"1.3.1">>},0},
  {<<"eunit_formatters">>,{pkg,<<"eunit_formatters">>,<<"0.5.0">>},0},
  {<<"getopt">>,{pkg,<<"getopt">>,<<"1.0.1">>},0},
@@ -15,7 +15,7 @@
  {<<"bbmustache">>, <<"9FB63FA60BD53AFBF47F02E6D8BD6B2BEAFC068E02E20975254DC7461FD4F397">>},
  {<<"certifi">>, <<"867CE347F7C7D78563450A18A6A28A8090331E77FA02380B4A21962A65D36EE5">>},
  {<<"cf">>, <<"7F2913FFF90ABCABD0F489896CFEB0B0674F6C8DF6C10B17A83175448029896C">>},
- {<<"cth_readable">>, <<"5B8117797E89D5074022CA21C7867216B796C5C04895B71C097EC8BF0F8A55C1">>},
+ {<<"cth_readable">>, <<"6CEFD2C293F5F04A80F7DB45D1BAFF70E720681AC98E6A11B5FEF1BF5B14B9FB">>},
  {<<"erlware_commons">>, <<"0CE192AD69BC6FD0880246D852D0ECE17631E234878011D1586E053641ED4C04">>},
  {<<"eunit_formatters">>, <<"6A9133943D36A465D804C1C5B6E6839030434B8879C5600D7DDB5B3BAD4CCB59">>},
  {<<"getopt">>, <<"C73A9FA687B217F2FF79F68A3B637711BB1936E712B521D8CE466B29CBF7808A">>},