write_file(): drop caller-supplied LF from calls to create a one-liner file

All of the callsites covered by this change call write_file() or
write_file_gently() to create a one-liner file.  Drop the caller
supplied LF and let these callees to append it as necessary.

Signed-off-by: Junio C Hamano <gitster@pobox.com>

builtin/init-db.c

@@ -378,7 +378,7 @@ static void separate_git_dir(const char *git_dir)
 			die_errno(_("unable to move %s to %s"), src, git_dir);
 	}
 
-	write_file(git_link, "gitdir: %s\n", git_dir);
+	write_file(git_link, "gitdir: %s", git_dir);
 }
 
 int init_db(const char *template_dir, unsigned int flags)

builtin/worktree.c

@@ -213,7 +213,7 @@ static int add_worktree(const char *path, const char **child_argv)
 	 * after the preparation is over.
 	 */
 	strbuf_addf(&sb, "%s/locked", sb_repo.buf);
-	write_file(sb.buf, "initializing\n");
+	write_file(sb.buf, "initializing");
 
 	strbuf_addf(&sb_git, "%s/.git", path);
 	if (safe_create_leading_directories_const(sb_git.buf))
@@ -223,8 +223,8 @@ static int add_worktree(const char *path, const char **child_argv)
 
 	strbuf_reset(&sb);
 	strbuf_addf(&sb, "%s/gitdir", sb_repo.buf);
-	write_file(sb.buf, "%s\n", real_path(sb_git.buf));
-	write_file(sb_git.buf, "gitdir: %s/worktrees/%s\n",
+	write_file(sb.buf, "%s", real_path(sb_git.buf));
+	write_file(sb_git.buf, "gitdir: %s/worktrees/%s",
 		   real_path(get_git_common_dir()), name);
 	/*
 	 * This is to keep resolve_ref() happy. We need a valid HEAD
@@ -241,10 +241,10 @@ static int add_worktree(const char *path, const char **child_argv)
 		die(_("unable to resolve HEAD"));
 	strbuf_reset(&sb);
 	strbuf_addf(&sb, "%s/HEAD", sb_repo.buf);
-	write_file(sb.buf, "%s\n", sha1_to_hex(rev));
+	write_file(sb.buf, "%s", sha1_to_hex(rev));
 	strbuf_reset(&sb);
 	strbuf_addf(&sb, "%s/commondir", sb_repo.buf);
-	write_file(sb.buf, "../..\n");
+	write_file(sb.buf, "../..");
 
 	fprintf_ln(stderr, _("Enter %s (identifier %s)"), path, name);
 

daemon.c

@@ -1376,7 +1376,7 @@ int main(int argc, char **argv)
 		sanitize_stdfds();
 
 	if (pid_file)
-		write_file(pid_file, "%"PRIuMAX"\n", (uintmax_t) getpid());
+		write_file(pid_file, "%"PRIuMAX, (uintmax_t) getpid());
 
 	/* prepare argv for serving-processes */
 	cld_argv = xmalloc(sizeof (char *) * (argc + 2));

setup.c

@@ -404,7 +404,7 @@ static void update_linked_gitdir(const char *gitfile, const char *gitdir)
 
 	strbuf_addf(&path, "%s/gitfile", gitdir);
 	if (stat(path.buf, &st) || st.st_mtime + 24 * 3600 < time(NULL))
-		write_file_gently(path.buf, "%s\n", gitfile);
+		write_file_gently(path.buf, "%s", gitfile);
 	strbuf_release(&path);
 }
 

submodule.c

@@ -1103,7 +1103,7 @@ void connect_work_tree_and_git_dir(const char *work_tree, const char *git_dir)
 
 	/* Update gitfile */
 	strbuf_addf(&file_name, "%s/.git", work_tree);
-	write_file(file_name.buf, "gitdir: %s\n",
+	write_file(file_name.buf, "gitdir: %s",
 		   relative_path(git_dir, real_work_tree, &rel_path));
 
 	/* Update core.worktree setting */

transport.c

@@ -291,7 +291,7 @@ static int write_one_ref(const char *name, const struct object_id *oid,
 
 	strbuf_addstr(buf, name);
 	if (safe_create_leading_directories(buf->buf) ||
-	    write_file_gently(buf->buf, "%s\n", oid_to_hex(oid)))
+	    write_file_gently(buf->buf, "%s", oid_to_hex(oid)))
 		return error("problems writing temporary file %s: %s",
 			     buf->buf, strerror(errno));
 	strbuf_setlen(buf, len);