Fix typos
o replace .stabl with .stab (objdump.1)
o fix japanese wording (pax.1, pic.1, rcs.1)
o uncapitalize "opt_dest_name" since Japanese does not capitalize initial

word of sentense (rdist.1).

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