Update ffmpeg documentation regarding metadata setting. -title,

-author, -copyright, -track, -album, and -year options have been
dropped in favor of -metadata.

Originally committed as revision 19285 to svn://svn.ffmpeg.org/ffmpeg/trunk

doc/ffmpeg-doc.texi

@@ -282,29 +282,15 @@ The offset is added to the timestamps of the input files.
 Specifying a positive offset means that the corresponding
 streams are delayed by 'offset' seconds.
 
-@item -title @var{string}
-Set the title.
-
 @item -timestamp @var{time}
 Set the timestamp.
 
-@item -author @var{string}
-Set the author.
+@item -metadata @var{key}=@var{value}
+Set a metadata key/par value.
 
-@item -copyright @var{string}
-Set the copyright.
-
-@item -comment @var{string}
-Set the comment.
-
-@item -album @var{string}
-Set the album.
-
-@item -track @var{number}
-Set the track.
-
-@item -year @var{number}
-Set the year.
+@example
+ffmpeg -i in.avi -metadata title="my title"
+@end example
 
 @item -v @var{number}
 Set the logging verbosity level.