coreutils: update to 9.4

patches were copied from CygWin.

coreutils/coreutils-9.4-src-install.c.patch

@@ -0,0 +1,30 @@
+--- origsrc/src/install.c	2023-07-05 05:09:55.000000000 -0600
++++ src/src/install.c	2023-09-09 22:14:29.695309700 -0600
+@@ -44,6 +44,10 @@
+ #include "utimens.h"
+ #include "xstrtol.h"
+ 
++#ifdef __CYGWIN__
++# include "cygwin.h"
++#endif
++
+ /* The official name of this program (e.g., no 'g' prefix).  */
+ #define PROGRAM_NAME "install"
+ 
+@@ -504,6 +508,16 @@ strip (char const *name)
+         char const *safe_name = name;
+         if (name && *name == '-')
+           safe_name = file_name_concat (".", name, nullptr);
++#if __CYGWIN__
++        {
++	 /* Check for .exe here, since strip doesn't.  */
++	   char *p;
++	   if (((p = strchr (safe_name, '\0') - 4) <= safe_name
++	         || strcasecmp (p, ".exe") != 0)
++	         && 0 < cygwin_spelling (safe_name))
++            CYGWIN_APPEND_EXE (p, safe_name);
++        }
++#endif /* __CYGWIN__ */
+         execlp (strip_program, strip_program, safe_name, nullptr);
+         error (EXIT_FAILURE, errno, _("cannot run %s"),
+                quoteaf (strip_program));