*w3m*<7> buffer names too terse

[jidanni@xxxxxxxxxxx]

I note that in Ibuffer, it is very hard to tell which w3m buffer is which:
  Name             Filename
  ----             --------
[ Default ]
  *Group*
  *w3m*<7>
  gbk.txt          /tmp/gbk.txt
  *w3m*<3>
  *w3m*<2>
  *w3m*<6>
  *sent mail to william xwl* ~/News/drafts/drafts/1
  *sent wide reply to Nicolas François* ~/News/drafts/drafts/2

Maybe emacs-w3m should take a lesson from gnus and use a more
descriptive buffer names.