git: update to v2.11.0

Update to git version v2.11.0. Function write_archive()
dropped argument (int setup_prefix).

Makefile

@@ -14,7 +14,7 @@ htmldir = $(docdir)
 pdfdir = $(docdir)
 mandir = $(prefix)/share/man
 SHA1_HEADER = <openssl/sha.h>
-GIT_VER = 2.10.2
+GIT_VER = 2.11.0
 GIT_URL = https://www.kernel.org/pub/software/scm/git/git-$(GIT_VER).tar.gz
 INSTALL = install
 COPYTREE = cp -r

git

@@ -1 +1 @@
-Subproject commit ac84098b7e32406a982ac01cc76a663d5605224b
+Subproject commit 454cb6bd52a4de614a3633e4f547af03d5c3b640

ui-snapshot.c

@@ -37,7 +37,7 @@ static int write_archive_type(const char *format, const char *hex, const char *p
 	/* argv_array guarantees a trailing NULL entry. */
 	memcpy(nargv, argv.argv, sizeof(char *) * (argv.argc + 1));
 
-	result = write_archive(argv.argc, nargv, NULL, 1, NULL, 0);
+	result = write_archive(argv.argc, nargv, NULL, NULL, 0);
 	argv_array_clear(&argv);
 	free(nargv);
 	return result;