Standarized use of star in pointer types

src/m4a.c

@@ -1178,7 +1178,7 @@ void CgbSound(void)
                 *nrx3ptr = channels->frequency;
             else
                 *nrx3ptr = (*nrx3ptr & 0x08) | channels->frequency;
-            channels->n4 = (channels->n4 & 0xC0) + (*((u8*)(&channels->frequency) + 1));
+            channels->n4 = (channels->n4 & 0xC0) + (*((u8 *)(&channels->frequency) + 1));
             *nrx4ptr = (s8)(channels->n4 & mask);
         }