Changed multi-line C comments into another style.

The left side doesn't look unbalanced.

src/ld65/condes.h

@@ -89,8 +89,8 @@ void ConDesSetSegName (unsigned Type, unsigned SegName);
 
 const ConDesImport* ConDesGetImport (unsigned Type);
 /* Get the forced import for the given ConDes type. Returns NULL if there is
- * no forced import for this type.
- */
+** no forced import for this type.
+*/
 
 void ConDesSetImport (unsigned Type, const ConDesImport* Import);
 /* Set the forced import for the given ConDes type */