fixup! Allow the guest to manage its own stack

Fix out-of-date-comment

Signed-off-by: Lucy Menon <168595099+syntactically@users.noreply.github.com>

Author: syntactically

src/tests/c_guests/c_simpleguest/main.c

@@ -8,7 +8,7 @@
 // Included from hyperlight_guest_bin/third_party/printf
 #include "printf.h"
 
-#define GUEST_SCRATCH_SIZE (0x40000) // default stack size
+#define GUEST_SCRATCH_SIZE (0x40000) // default scratch size
 #define MAX_BUFFER_SIZE (1024)
 
 static char big_array[1024 * 1024] = {0};