Fix typos
o add missing right parren (ar.1)
o add missing leading dot before %T (bdes.1)
o add missing .TP for -V and its description (ci.1)
o fix description for directory permission problem;

unreadable -> unwritable (cpio.1)

o remove repeated phrase (ctm.1)

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