The man.vim script assumes that foldcolumn and numberwidth are 0. If
they are not, the generated lines are too long.
Here's a patch to fix this:
~$ diff -u /usr/share/vim/vim70/ftplugin/man.vim
/home/guivho/.vim/ftplugin/man.vim
--- /usr/share/vim/vim70/ftplugin/man.vim 2006-10-20
11:48:47.000000000 +0200
+++ /home/guivho/.vim/ftplugin/man.vim 2006-12-03 09:15:37.000000000 +0100
@@ -141,7 +141,13 @@
setl ma
silent exec "norm 1GdG"
- let $MANWIDTH = winwidth(0)
+ " leave room for foldcolumn and numberwidth
+ let s:notfree = &numberwidth + &foldcolumn
+ if &foldcolumn == 4
+ " one extra col allows for man pages > 999 lines, e.g. bash
+ let s:notfree = s:notfree + 1
+ endif
+ let $MANWIDTH = winwidth(0) - s:notfree
silent exec "r!/usr/bin/man ".s:GetCmdArg(sect, page)." | col -b"
" Remove blank lines from top and bottom.
while getline(1) =~ '^\s*$'
~$
Guido