bin/169500: expr(1) improperly requires forward slash to be escaped

[linimon at FreeBSD.org]

Old Synopsis: /bin/expr improperly requires forward slash to be escaped
New Synopsis: expr(1) improperly requires forward slash to be escaped

Responsible-Changed-From-To: freebsd-bugs->freebsd-bugs
Responsible-Changed-By: linimon
Responsible-Changed-When: Wed Jun 27 23:52:26 UTC 2012
Responsible-Changed-Why: 
fix Synopsis.

http://www.freebsd.org/cgi/query-pr.cgi?pr=169500