Changed multi-line C comments into another style.

The left side doesn't look unbalanced.

libsrc/mouse/mouse_move.s

@@ -3,10 +3,10 @@
 ;
 ; void __fastcall__ mouse_move (int x, int y);
 ; /* Set the mouse cursor to the given position. If a mouse cursor is defined
-;  * and currently visible, the mouse cursor is also moved.
-;  * NOTE: This function does not check if the given position is valid and
-;  * inside the bounding box.
-;  */
+; ** and currently visible, the mouse cursor is also moved.
+; ** NOTE: This function does not check if the given position is valid and
+; ** inside the bounding box.
+; */
 ;
 
         .import         incsp2