builtin/grep: convert to struct object_id

diff --git a/Documentation/gitk.txt b/Documentation/gitk.txt
index 6c84c012b7d42428c95fae063b5d5b7725143a2d..ca96c281d1f3abbf71cdac112a019d2849e7ad0b 100644 (file)
--- a/Documentation/gitk.txt
+++ b/Documentation/gitk.txt
@@ -70,7 +70,7 @@ linkgit:git-rev-list[1] for a complete list.
 
 --left-right::
 
-       Mark which side of a symmetric diff a commit is reachable
+       Mark which side of a symmetric difference a commit is reachable
        from.  Commits from the left side are prefixed with a `<`
        symbol and those from the right with a `>` symbol.
 
@@ -82,7 +82,7 @@ linkgit:git-rev-list[1] for a complete list.
 
 --simplify-merges::
 
-       Additional option to '--full-history' to remove some needless
+       Additional option to `--full-history` to remove some needless
        merges from the resulting history, as there are no selected
        commits contributing to this merge.  (See "History
        simplification" in linkgit:git-log[1] for a more detailed
@@ -178,9 +178,15 @@ used by default. If '$XDG_CONFIG_HOME' is not set it defaults to
 History
 -------
 Gitk was the first graphical repository browser. It's written in
-tcl/tk and started off in a separate repository but was later merged
-into the main Git repository.
+tcl/tk.
 
+'gitk' is actually maintained as an independent project, but stable
+versions are distributed as part of the Git suite for the convenience
+of end users.
+
+gitk-git/ comes from Paul Mackerras's gitk project:
+
+       git://ozlabs.org/~paulus/gitk
 
 SEE ALSO
 --------