Changed multi-line C comments into another style.

The left side doesn't look unbalanced.

src/ar65/objdata.c

@@ -122,8 +122,8 @@ void ClearObjData (ObjData* O)
 
 ObjData* FindObjData (const char* Module)
 /* Search for the module with the given name and return it. Return NULL if the
- * module is not in the list.
- */
+** module is not in the list.
+*/
 {
     unsigned I;