Merge branch 'master' into next

* master:
  add: introduce add.ignoreerrors synonym for add.ignore-errors
  commit.c: Remove backward goto in read_craft_line()
  bash: Match lightweight tags in prompt
  git-commit.txt: (synopsis): move -i and -o before "--"

Conflicts:
	Documentation/git-commit.txt

Documentation/config.txt

@@ -563,9 +563,13 @@ core.sparseCheckout::
 	linkgit:git-read-tree[1] for more information.
 
 add.ignore-errors::
+add.ignoreErrors::
 	Tells 'git add' to continue adding files when some files cannot be
 	added due to indexing errors. Equivalent to the '--ignore-errors'
-	option of linkgit:git-add[1].
+	option of linkgit:git-add[1].  Older versions of git accept only
+	`add.ignore-errors`, which does not follow the usual naming
+	convention for configuration variables.  Newer versions of git
+	honor `add.ignoreErrors` as well.
 
 alias.*::
 	Command aliases for the linkgit:git[1] command wrapper - e.g.

Documentation/git-commit.txt

@@ -12,7 +12,7 @@ SYNOPSIS
 	   [(-c | -C | --fixup | --squash) <commit>] [-F <file> | -m <msg>]
 	   [--reset-author] [--allow-empty] [--allow-empty-message] [--no-verify]
 	   [-e] [--author=<author>] [--date=<date>] [--cleanup=<mode>]
-	   [--status | --no-status] [--] [[-i | -o ]<file>...]
+	   [--status | --no-status] [-i | -o] [--] [<file>...]
 
 DESCRIPTION
 -----------

builtin/add.c

@@ -331,7 +331,8 @@ static struct option builtin_add_options[] = {
 
 static int add_config(const char *var, const char *value, void *cb)
 {
-	if (!strcasecmp(var, "add.ignore-errors")) {
+	if (!strcasecmp(var, "add.ignoreerrors") ||
+	    !strcasecmp(var, "add.ignore-errors")) {
 		ignore_add_errors = git_config_bool(var, value);
 		return 0;
 	}

commit.c

@@ -150,12 +150,8 @@ struct commit_graft *read_graft_line(char *buf, int len)
 		buf[--len] = '\0';
 	if (buf[0] == '#' || buf[0] == '\0')
 		return NULL;
-	if ((len + 1) % 41) {
-	bad_graft_data:
-		error("bad graft data: %s", buf);
-		free(graft);
-		return NULL;
-	}
+	if ((len + 1) % 41)
+		goto bad_graft_data;
 	i = (len + 1) / 41 - 1;
 	graft = xmalloc(sizeof(*graft) + 20 * i);
 	graft->nr_parent = i;
@@ -168,6 +164,11 @@ struct commit_graft *read_graft_line(char *buf, int len)
 			goto bad_graft_data;
 	}
 	return graft;
+
+bad_graft_data:
+	error("bad graft data: %s", buf);
+	free(graft);
+	return NULL;
 }
 
 static int read_graft_file(const char *graft_file)

contrib/completion/git-completion.bash

@@ -261,7 +261,7 @@ __git_ps1 ()
 				(describe)
 					git describe HEAD ;;
 				(* | default)
-					git describe --exact-match HEAD ;;
+					git describe --tags --exact-match HEAD ;;
 				esac 2>/dev/null)" ||
 
 				b="$(cut -c1-7 "$g/HEAD" 2>/dev/null)..." ||