Some pagedumps-*.gz files contain entries that are wrapping across multiple lines. For example:
https://dumps.wikimedia.org/other/pageviews/2019/2019-02/pageviews-20190225-150000.gz
contains:
en.m Current_rating_of_the_circuit_=_5_A So,_fuse_will_blow_off_and_power_supply_will_cut_off 34._When_is 1 0
starting on line 2933031. It looks like this should be all on a single line.