docs/149845: unify spelling of blocksize, block-size and block size in manuals

[Alexander Best]

>Number:         149845
>Category:       docs
>Synopsis:       unify spelling of blocksize, block-size and block size in manuals
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-doc
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          change-request
>Submitter-Id:   current-users
>Arrival-Date:   Sat Aug 21 00:00:07 UTC 2010
>Closed-Date:
>Last-Modified:
>Originator:     Alexander Best
>Release:        9.0-CURRENT
>Organization:
>Environment:
FreeBSD otaku 9.0-CURRENT FreeBSD 9.0-CURRENT #0 r211393M: Mon Aug 16 14:59:32 CEST 2010     root at otaku:/usr/obj/usr/src/sys/ARUNDEL  amd64
>Description:
the stats in the next section should make things clear.

cheers.
alex
>How-To-Repeat:
`find /usr/src -name "*.[0-9]" -exec grep 'blocksize' {} +|wc`:
      92     788    8001

`find /usr/src -name "*.[0-9]" -exec grep 'block-size' {} +|wc`:
      12      67     748

`find /usr/src -name "*.[0-9]" -exec grep 'block size' {} +|wc`:
     130    1381   11944
>Fix:


>Release-Note:
>Audit-Trail:
>Unformatted: