[PATCH 5/9] submodule: use the (possibly overridden) default branch name

["Johannes Schindelin via GitGitGadget" <gitgitgadget@xxxxxxxxx>]

From: Johannes Schindelin <johannes.schindelin@xxxxxx>

To allow for overriding the default branch name, we have introduced a
config setting. With this patch, the `git submodule` command learns
about this, too.

Signed-off-by: Johannes Schindelin <johannes.schindelin@xxxxxx>
---
 builtin/submodule--helper.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/builtin/submodule--helper.c b/builtin/submodule--helper.c
index 46c03d2a126..0b4abb5a64b 100644
--- a/builtin/submodule--helper.c
+++ b/builtin/submodule--helper.c
@@ -1980,8 +1980,14 @@ static const char *remote_submodule_branch(const char *path)
 		branch = sub->branch;
 	free(key);
 
-	if (!branch)
-		return "master";
+	if (!branch) {
+		static char *default_branch;
+
+		if (!default_branch)
+			default_branch = git_default_branch_name(1);
+
+		return default_branch;
+	}
 
 	if (!strcmp(branch, ".")) {
 		const char *refname = resolve_ref_unsafe("HEAD", 0, NULL, NULL);
-- 
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