docs/156796: prototype fix in fls(3)

[delphij at FreeBSD.org]

Synopsis: prototype fix in fls(3)

State-Changed-From-To: open->patched
State-Changed-By: delphij
State-Changed-When: Tue May 3 19:33:16 UTC 2011
State-Changed-Why: 
Fixed in -HEAD.

http://www.freebsd.org/cgi/query-pr.cgi?pr=156796