Un-paged commit messages in git filter-branch's commit-filter?

[Stefan Tauner <stefan.tauner@gmx.at>]

Hello,

I am trying to do a major cleanup of the repository in one of my
projects (and switch from git-svn to native git). I have developed a
commit-filter script over the last months that massages partially
dreadful commit messages into something acceptable. While I am not 100%
sure I think that upgrading git has broken it partially. AFAICT since
the update the commit-filter does not get the original message anymore
but at least the subject/first paragraph is run through a pager or
something similar:
The first line is broken into multiple lines (i.e. some line breaks are
inserted about every 72 characters where none have been before).

I have tried to run "git --no-pager filter-branch ..." to no avail. I
have briefly looked at the source but could not find any proofs...
Any hints would be appreciated. This is how I run my script:

tmpvar="$(</home/.....sh)" ; git --no-pager filter-branch -f --commit-filter "$tmpvar" --tag-name-filter cat -- HEAD

-- 
Kind regards, Stefan Tauner