man/arpsend.8: improvements

(1) Use .SY/.OP/.YS to format SYNOPSYS

(2) Use separate SYNOPSYS for -D and -U to make it more clear

(3) Simplify options formatting using .B/.BI

(4) Reformat EXAMPLES using .EX/.EE

(5) In EXAMPLES description, use bold not italic for literals

(6) Spelling fix (not -> nor)

Signed-off-by: Kir Kolyshkin <kir@openvz.org>
1 file changed