Use stdlib.h instead of non-standard malloc.h.

tools/winedump/lnk.c

@@ -19,7 +19,7 @@
  */
 
 #include <stdio.h>
-#include <malloc.h>
+#include <stdlib.h>
 #include <unistd.h>
 #include <sys/types.h>
 #include <sys/stat.h>