git filter-branch --message-filter ' +git filter-branch --msg-filter ' sed -e "/^git-svn-id:/d" '
From: Junio C Hamano
You can rewrite the commit log messages using --message-filter. For +
You can rewrite the commit log messages using --msg-filter. For example, git-svn-id strings in a repository created by git-svn can be removed this way:
git filter-branch --message-filter ' +git filter-branch --msg-filter ' sed -e "/^git-svn-id:/d" '