[PATCH v2] maintenance: use xcalloc instead of xmalloc where possible

From: Seija <doremylover123@gmail.com>

We can avoid having to call memset by calling xcalloc directly

Signed-off-by: Seija doremylover123@gmail.com
---
    maintenance: use xcalloc instead of xmalloc where possible
    
    We can avoid having to call memset by calling xcalloc directly
    
    Signed-off-by: Seija doremylover123@gmail.com

Published-As: https://github.com/gitgitgadget/git/releases/tag/pr-git-1390%2FAtariDreams%2Fcalloc-v2
Fetch-It-Via: git fetch https://github.com/gitgitgadget/git pr-git-1390/AtariDreams/calloc-v2
Pull-Request: https://github.com/git/git/pull/1390

Range-diff vs v1:

 1:  f56282194a7 ! 1:  ee8a7af6435 maintenance: use xcalloc instead of xmalloc where possible
     @@ remote.c: void apply_push_cas(struct push_cas_option *cas,
       struct remote_state *remote_state_new(void)
       {
      -	struct remote_state *r = xmalloc(sizeof(*r));
     --
     ++	struct remote_state *r;
     + 
      -	memset(r, 0, sizeof(*r));
     -+	struct remote_state *r = xcalloc(1, sizeof(*r));
     ++	CALLOC_ARRAY(r, 1);
       
       	hashmap_init(&r->remotes_hash, remotes_hash_cmp, NULL, 0);
       	hashmap_init(&r->branches_hash, branches_hash_cmp, NULL, 0);
      
       ## submodule.c ##
     -@@ submodule.c: static const struct submodule *get_non_gitmodules_submodule(const char *path)
     +@@ submodule.c: struct fetch_task {
     +  */
     + static const struct submodule *get_non_gitmodules_submodule(const char *path)
     + {
     +-	struct submodule *ret = NULL;
     ++	struct submodule *ret;
     + 	const char *name = default_name_or_path(path);
     + 
       	if (!name)
       		return NULL;
       
      -	ret = xmalloc(sizeof(*ret));
      -	memset(ret, 0, sizeof(*ret));
     -+	ret = xcalloc(1, sizeof(*ret));
     ++	CALLOC_ARRAY(ret, 1);
       	ret->path = name;
       	ret->name = name;
       

 remote.c    | 4 ++--
 submodule.c | 5 ++---
 2 files changed, 4 insertions(+), 5 deletions(-)