(1) Use .SY/.OP/.YS macros for SYNOPSYS

(2) Simplify OPTIONS formatting using .BI and .B

(3) Fix a few cases where - was not prepended by \

(4) s/below/following/g

(5) Note that suffixes are case-insensitive

(5) Highlight the flags implied by -R

(6) s/Rate-test/Disk seek rate test/

(7) s/page/a page/
Signed-off-by: Kir Kolyshkin <kir@openvz.org>
Signed-off-by: Konstantin Khlebnikov <koct9i@gmail.com>