revision.c: explain what tree_difference does

diff --git a/Documentation/git-cvsexportcommit.txt b/Documentation/git-cvsexportcommit.txt
index 56bd3e517d80e6542a3aa118984aee0fefec2ab7..555b8234f0ebfe99f5b59f9b5c71ee2569b4e347 100644 (file)
--- a/Documentation/git-cvsexportcommit.txt
+++ b/Documentation/git-cvsexportcommit.txt
@@ -3,12 +3,12 @@ git-cvsexportcommit(1)
 
 NAME
 ----
-git-cvsexportcommit - Export a commit to a CVS checkout
+git-cvsexportcommit - Export a single commit to a CVS checkout
 
 
 SYNOPSIS
 --------
-'git-cvsexportcommmit' [-h] [-v] [-c] [-p] [-f] [-m msgprefix] [PARENTCOMMIT] COMMITID
+'git-cvsexportcommit' [-h] [-v] [-c] [-P] [-p] [-a] [-d cvsroot] [-f] [-m msgprefix] [PARENTCOMMIT] COMMITID
 
 
 DESCRIPTION
@@ -36,12 +36,24 @@ OPTIONS
        commit if any hunks fail to apply or there were other problems.
 
 -p::
-       Be pedantic (paranoid) when applying patches. Invokes patch with 
+       Be pedantic (paranoid) when applying patches. Invokes patch with
        --fuzz=0
 
+-a::
+       Add authorship information. Adds Author line, and Committer (if
+       different from Author) to the message.
+
+-d::
+       Set an alternative CVSROOT to use.  This corresponds to the CVS
+       -d parameter.  Usually users will not want to set this, except
+       if using CVS in an asymmetric fashion.
+
 -f::
        Force the merge even if the files are not up to date.
 
+-P::
+       Force the parent commit, even if it is not a direct parent.
+
 -m::
        Prepend the commit message with the provided prefix. 
        Useful for patch series and the like.