o fix punctutaion and workding (eqn.1)
o device -> device node (fdformat.1)
o remove repeated word (fetch.1)
o name_file -> namefile, Pagicdir -> Magdir (file.1)
o add missing .Tp for lbp

Submitted by: Satoru Koizumi <koizumi@cms.phys.s.u-tokyo.ac.jp>