3.13.0-125.174) is not available, but a newer one is (3.13.0-166.216). We redirected you there.
/usr/share/man/pl/man1/lex.1.gz is in manpages-pl 1:0.7-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/man/pl/man1/flex.1.gz