Increase scratch space to 10MB

src/hello/scratch.d

@@ -6,7 +6,7 @@ module hello.scratch;
 struct scratch
 {
     /* Scratch buffer. */
-    private static align(4096) __gshared ubyte[1024 * 1024] scratch;
+    private static align(4096) __gshared ubyte[10 * 1024 * 1024] scratch;
 
     /* Number of scratch buffer bytes used. */
     private static __gshared size_t scratch_used;