tools/nolibc: process open() vararg as mode_t

openat() uses mode_t for this, so also update open() to be consistent.

Signed-off-by: Louis Taylor <louis@kragniz.eu>
Link: https://lore.kernel.org/r/20250306184147.208723-3-louis@kragniz.eu
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>

Author: kragniz

tools/include/nolibc/sys.h

@@ -810,7 +810,7 @@ int open(const char *path, int flags, ...)
 		va_list args;
 
 		va_start(args, flags);
-		mode = va_arg(args, int);
+		mode = va_arg(args, mode_t);
 		va_end(args);
 	}