RFC: git: update to v2.45.0-rc1

Update to git version v2.45.0-rc1, this requires changes for these
upstream commits:

* 9720d23e8caf4adee44b3a32803a9bb0480118bd
  date: make DATE_MODE thread-safe

Signed-off-by: Christian Hesse <mail@eworm.de>

Makefile

@@ -14,8 +14,8 @@ htmldir = $(docdir)
 pdfdir = $(docdir)
 mandir = $(prefix)/share/man
 SHA1_HEADER = <openssl/sha.h>
-GIT_VER = 2.44.0
-GIT_URL = https://www.kernel.org/pub/software/scm/git/git-$(GIT_VER).tar.xz
+GIT_VER = 2.45.0.rc1
+GIT_URL = https://www.kernel.org/pub/software/scm/git/testing/git-$(GIT_VER).tar.xz
 INSTALL = install
 COPYTREE = cp -r
 MAN5_TXT = $(wildcard *.5.txt)

git

@@ -1 +1 @@
-Subproject commit 3c2a3fdc388747b9eaf4a4a4f2035c1c9ddb26d0
+Subproject commit bf995e7a4f94a9388aa8042dc9e338f3fcb75496

ui-shared.c

@@ -662,12 +662,12 @@ void cgit_submodule_link(const char *class, char *path, const char *rev)
 		path[len - 1] = tail;
 }
 
-const struct date_mode *cgit_date_mode(enum date_mode_type type)
+const struct date_mode cgit_date_mode(enum date_mode_type type)
 {
 	static struct date_mode mode;
 	mode.type = type;
 	mode.local = ctx.cfg.local_time;
-	return &mode;
+	return mode;
 }
 
 static void print_rel_date(time_t t, int tz, double value,

ui-shared.h

@@ -65,7 +65,7 @@ __attribute__((format (printf,1,2)))
 extern void cgit_print_error(const char *fmt, ...);
 __attribute__((format (printf,1,0)))
 extern void cgit_vprint_error(const char *fmt, va_list ap);
-extern const struct date_mode *cgit_date_mode(enum date_mode_type type);
+extern const struct date_mode cgit_date_mode(enum date_mode_type type);
 extern void cgit_print_age(time_t t, int tz, time_t max_relative);
 extern void cgit_print_http_headers(void);
 extern void cgit_redirect(const char *url, bool permanent);