use CHILD_PROCESS_INIT to initialize automatic variables

Initialize struct child_process variables already when they're defined.
That's shorter and saves a function call.

Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

builtin/submodule--helper.c

@@ -444,8 +444,7 @@ static int module_name(int argc, const char **argv, const char *prefix)
 static int clone_submodule(const char *path, const char *gitdir, const char *url,
 			   const char *depth, const char *reference, int quiet)
 {
-	struct child_process cp;
-	child_process_init(&cp);
+	struct child_process cp = CHILD_PROCESS_INIT;
 
 	argv_array_push(&cp.args, "clone");
 	argv_array_push(&cp.args, "--no-checkout");

builtin/worktree.c

@@ -194,7 +194,7 @@ static int add_worktree(const char *path, const char *refname,
 	struct strbuf sb = STRBUF_INIT;
 	const char *name;
 	struct stat st;
-	struct child_process cp;
+	struct child_process cp = CHILD_PROCESS_INIT;
 	struct argv_array child_env = ARGV_ARRAY_INIT;
 	int counter = 0, len, ret;
 	struct strbuf symref = STRBUF_INIT;
@@ -273,7 +273,6 @@ static int add_worktree(const char *path, const char *refname,
 
 	argv_array_pushf(&child_env, "%s=%s", GIT_DIR_ENVIRONMENT, sb_git.buf);
 	argv_array_pushf(&child_env, "%s=%s", GIT_WORK_TREE_ENVIRONMENT, path);
-	memset(&cp, 0, sizeof(cp));
 	cp.git_cmd = 1;
 
 	if (commit)
@@ -365,8 +364,7 @@ static int add(int ac, const char **av, const char *prefix)
 	}
 
 	if (opts.new_branch) {
-		struct child_process cp;
-		memset(&cp, 0, sizeof(cp));
+		struct child_process cp = CHILD_PROCESS_INIT;
 		cp.git_cmd = 1;
 		argv_array_push(&cp.args, "branch");
 		if (opts.force_new_branch)