dir.c: provide clear_directory() for reclaiming dir_struct memory

diff --git a/Documentation/git-mergetool.txt b/Documentation/git-mergetool.txt
index 1f75a848ba36728eeaa67e5cbbc209075393193b..d7207bd9b9bba59a0e1f97341fb77927026e1b52 100644 (file)
--- a/Documentation/git-mergetool.txt
+++ b/Documentation/git-mergetool.txt
@@ -7,6 +7,7 @@ git-mergetool - Run merge conflict resolution tools to resolve merge conflicts
 
 SYNOPSIS
 --------
+[verse]
 'git mergetool' [--tool=<tool>] [-y|--no-prompt|--prompt] [<file>...]
 
 DESCRIPTION
@@ -16,18 +17,19 @@ Use `git mergetool` to run one of several merge utilities to resolve
 merge conflicts.  It is typically run after 'git merge'.
 
 If one or more <file> parameters are given, the merge tool program will
-be run to resolve differences on each file.  If no <file> names are
-specified, 'git mergetool' will run the merge tool program on every file
-with merge conflicts.
+be run to resolve differences on each file (skipping those without
+conflicts).  Specifying a directory will include all unresolved files in
+that path.  If no <file> names are specified, 'git mergetool' will run
+the merge tool program on every file with merge conflicts.
 
 OPTIONS
 -------
 -t <tool>::
 --tool=<tool>::
        Use the merge resolution program specified by <tool>.
-       Valid merge tools are:
-       kdiff3, tkdiff, meld, xxdiff, emerge, vimdiff, gvimdiff, ecmerge,
-       diffuse, tortoisemerge, opendiff, p4merge and araxis.
+       Valid values include emerge, gvimdiff, kdiff3,
+       meld, vimdiff, and tortoisemerge. Run `git mergetool --tool-help`
+       for the list of valid <tool> settings.
 +
 If a merge resolution program is not specified, 'git mergetool'
 will use the configuration variable `merge.tool`.  If the
@@ -82,14 +84,6 @@ Setting the `mergetool.keepBackup` configuration variable to `false`
 causes `git mergetool` to automatically remove the backup as files
 are successfully merged.
 
-Author
-------
-Written by Theodore Y Ts'o <tytso@mit.edu>
-
-Documentation
---------------
-Documentation by Theodore Y Ts'o.
-
 GIT
 ---
 Part of the linkgit:git[1] suite