pgsql: Update wording: < could only see committed rows from another

Log Message:
-----------
Update wording:

< could only see committed rows from another transaction. However,

could only see rows from another completed transaction. However,

981c981
< proper visibility of the row, for example, for cursors.

proper visibility of the row's cmin, for example, for cursors.

Modified Files:
--------------
pgsql/doc:
TODO (r1.1648 -> r1.1649)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/TODO.diff?r1=1.1648&amp;r2=1.1649)
pgsql/doc/src/FAQ:
TODO.html (r1.155 -> r1.156)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/FAQ/TODO.html.diff?r1=1.155&amp;r2=1.156)