Merge branch 'master' into next

* master:
  Documentation: Define symref and update HEAD description
  Document git-runstatus
  git-apply: slightly clean up bitfield usage
  sparse fix: Using plain integer as NULL pointer
  sparse fix: non-ANSI function declaration
  git-apply: Documentation typo fix
  Fix git-for-each-refs broken for tags

Documentation/git-apply.txt

@@ -150,7 +150,7 @@ discouraged.
 * `strip` outputs warnings for a few such errors, strips out the
   trailing whitespaces and applies the patch.
 
---inacurate-eof::
+--inaccurate-eof::
 	Under certain circumstances, some versions of diff do not correctly
 	detect a missing new-line at the end of the file. As a result, patches
 	created by such diff programs do not record incomplete lines

Documentation/git-runstatus.txt

@@ -0,0 +1,69 @@
+git-runstatus(1)
+================
+
+NAME
+----
+git-runstatus - A helper for git-status and git-commit
+
+
+SYNOPSIS
+--------
+'git-runstatus' [--color|--nocolor] [--amend] [--verbose] [--untracked]
+
+
+DESCRIPTION
+-----------
+Examines paths in the working tree that has changes unrecorded
+to the index file, and changes between the index file and the
+current HEAD commit.  The former paths are what you _could_
+commit by running 'git-update-index' before running 'git
+commit', and the latter paths are what you _would_ commit by
+running 'git commit'.
+
+If there is no path that is different between the index file and
+the current HEAD commit, the command exits with non-zero status.
+
+Note that this is _not_ the user level command you would want to
+run from the command line.  Use 'git-status' instead.
+
+
+OPTIONS
+-------
+--color::
+	Show colored status, highlighting modified file names.
+
+--nocolor::
+	Turn off coloring.
+
+--amend::
+	Show status based on HEAD^1, not HEAD, i.e. show what
+	'git-commit --amend' would do.
+
+--verbose::
+	Show unified diff of all file changes.
+
+--untracked::
+	Show files in untracked directories, too.  Without this
+	option only its name and a trailing slash are displayed
+	for each untracked directory.
+
+
+OUTPUT
+------
+The output from this command is designed to be used as a commit
+template comments, and all the output lines are prefixed with '#'.
+
+
+Author
+------
+Originally written by Linus Torvalds <torvalds@osdl.org> as part
+of git-commit, and later rewritten in C by Jeff King.
+
+Documentation
+--------------
+Documentation by David Greaves, Junio C Hamano and the git-list <git@vger.kernel.org>.
+
+GIT
+---
+Part of the gitlink:git[7] suite
+

Documentation/git.txt

@@ -302,6 +302,9 @@ gitlink:git-request-pull[1]::
 gitlink:git-rev-parse[1]::
 	Pick out and massage parameters.
 
+gitlink:git-runstatus[1]::
+	A helper for git-status and git-commit.
+
 gitlink:git-send-email[1]::
 	Send patch e-mails out of "format-patch --mbox" output.
 

Documentation/glossary.txt

@@ -282,6 +282,13 @@ SCM::
 SHA1::
 	Synonym for object name.
 
+symref::
+	Symbolic reference: instead of containing the SHA1 id itself, it
+	is of the format 'ref: refs/some/thing' and when referenced, it
+	recursively dereferences to this reference. 'HEAD' is a prime
+	example of a symref. Symbolic references are manipulated with
+	the gitlink:git-symbolic-ref[1] command.
+
 topic branch::
 	A regular git branch that is used by a developer to
 	identify a conceptual line of development.  Since branches

Documentation/repository-layout.txt

@@ -70,12 +70,16 @@ refs/tags/`name`::
 	object, or a tag object that points at a commit object).
 
 HEAD::
-	A symlink of the form `refs/heads/'name'` to point at
-	the current branch, if exists.  It does not mean much if
-	the repository is not associated with any working tree
+	A symref (see glossary) to the `refs/heads/` namespace
+	describing the currently active branch.  It does not mean
+	much if the repository is not associated with any working tree
 	(i.e. a 'bare' repository), but a valid git repository
-	*must* have such a symlink here.  It is legal if the
-	named branch 'name' does not (yet) exist.
+	*must* have the HEAD file; some porcelains may use it to
+	guess the designated "default" branch of the repository
+	(usually 'master').  It is legal if the named branch
+	'name' does not (yet) exist.  In some legacy setups, it is
+	a symbolic link instead of a symref that points at the current
+	branch.
 
 branches::
 	A slightly deprecated way to store shorthands to be used

archive-zip.c

@@ -160,7 +160,7 @@ static int write_zip_entry(const unsigned char *sha1,
 	void *buffer = NULL;
 	void *deflated = NULL;
 
-	crc = crc32(0, Z_NULL, 0);
+	crc = crc32(0, NULL, 0);
 
 	path = construct_path(base, baselen, filename, S_ISDIR(mode), &pathlen);
 	if (verbose)

builtin-apply.c

@@ -140,12 +140,15 @@ struct fragment {
 struct patch {
 	char *new_name, *old_name, *def_name;
 	unsigned int old_mode, new_mode;
-	int is_rename, is_copy, is_new, is_delete, is_binary;
+	int is_new, is_delete;	/* -1 = unknown, 0 = false, 1 = true */
 	int rejected;
 	unsigned long deflate_origlen;
 	int lines_added, lines_deleted;
 	int score;
-	int inaccurate_eof:1;
+	unsigned int inaccurate_eof:1;
+	unsigned int is_binary:1;
+	unsigned int is_copy:1;
+	unsigned int is_rename:1;
 	struct fragment *fragments;
 	char *result;
 	unsigned long resultsize;

builtin-for-each-ref.c

@@ -478,9 +478,9 @@ static void grab_sub_body_contents(struct atom_value *val, int deref, struct obj
 		if (!strcmp(name, "subject"))
 			v->s = copy_line(subpos);
 		else if (!strcmp(name, "body"))
-			v->s = bodypos;
+			v->s = xstrdup(bodypos);
 		else if (!strcmp(name, "contents"))
-			v->s = subpos;
+			v->s = xstrdup(subpos);
 	}
 }
 

builtin-runstatus.c

@@ -4,7 +4,7 @@
 extern int wt_status_use_color;
 
 static const char runstatus_usage[] =
-"git-runstatus [--color|--nocolor] [--amend] [--verbose]";
+"git-runstatus [--color|--nocolor] [--amend] [--verbose] [--untracked]";
 
 int cmd_runstatus(int argc, const char **argv, const char *prefix)
 {

index-pack.c

@@ -90,7 +90,7 @@ static SHA_CTX input_ctx;
 static int input_fd, output_fd, mmap_fd;
 
 /* Discard current buffer used content. */
-static void flush()
+static void flush(void)
 {
 	if (input_offset) {
 		if (output_fd >= 0)

read-cache.c

@@ -844,7 +844,7 @@ unmap:
 	die("index file corrupt");
 }
 
-int discard_cache()
+int discard_cache(void)
 {
 	int ret;