quickfix buffer does not handle very long lines properly.

[GoogleCodeExporter]

What steps will reproduce the problem?
1. Put the jq.js file in a temporary directory (say in ~/tmp/jq/jq.js).
2. cd to ~/tmp/jq/ .
3. Invoke gvim.
3. Type «:grep -r URI .»
4. Type :cn

What is the expected output? What do you see instead?

gvim tries to edit a new file with an unmanagable name instead of keep editing 
the very long line of jq.js. 

What version of the product are you using? On what operating system?

gvim-7.3.237 on Mageia Linux Cauldron x86-32.

Please provide any additional information below.

It also happens on Mandriva Linux Cooker on x86-64 with gvim-7.3.2xx mhi^ from 
IRC verified it to happen to.

Original issue reported on code.google.com by shlomif@gmail.com on 13 Jul 2011 at 5:26

[GoogleCodeExporter]

I cannot find my attachment anywhere, so I'm attaching it here with a .txt 
extension.

Original comment by shlomif@gmail.com on 13 Jul 2011 at 5:32

Attachments:

• jq.js.txt

[GoogleCodeExporter]

This is hard wired inside vim with the CMDBUFSIZE macro. You could increase the 
macro definition and recompile vim.

Original comment by chrisbr...@googlemail.com on 13 Jul 2011 at 9:27