Prints "should not be reached" in logs

Found it while browsing logs:

Oct 08 17:39:28 evergreen chatty[6052]: file ../src/chatty-utils.c: line 467 (chatty_utils_direction_from_flag): should not be reached
Oct 08 17:39:28 evergreen chatty[6052]: file ../src/chatty-history.c: line 151 (history_direction_to_value): should not be reached
Oct 08 17:39:30 evergreen chatty[6052]: file ../src/chatty-utils.c: line 467 (chatty_utils_direction_from_flag): should not be reached
Oct 08 17:39:30 evergreen chatty[6052]: file ../src/chatty-history.c: line 151 (history_direction_to_value): should not be reached
Oct 08 17:39:34 evergreen chatty[6052]: file ../src/chatty-utils.c: line 467 (chatty_utils_direction_from_flag): should not be reached
Oct 08 17:39:34 evergreen chatty[6052]: file ../src/chatty-history.c: line 151 (history_direction_to_value): should not be reached
Oct 08 17:39:47 evergreen chatty[6052]: file ../src/chatty-utils.c: line 467 (chatty_utils_direction_from_flag): should not be reached
Oct 08 17:39:47 evergreen chatty[6052]: file ../src/chatty-history.c: line 151 (history_direction_to_value): should not be reached
Oct 08 17:49:35 evergreen chatty[6052]: file ../src/chatty-utils.c: line 467 (chatty_utils_direction_from_flag): should not be reached
Oct 08 17:49:35 evergreen chatty[6052]: file ../src/chatty-history.c: line 151 (history_direction_to_value): should not be reached

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