Fixes for GCC 15.

--- liquidwar-5.6.5/src/srvcont.c	2018-12-23 19:04:36.000000000 +0000
+++ liquidwar-5.6.5/src/srvcont.c	2025-07-07 11:50:19.945499019 +0100
@@ -520,7 +520,7 @@
     {
       log_print_str ("Unable to bind socket on port ");
       log_print_int (port);
-      log_println ("!");
+      log_println_str ("!");
 
       /*
        * We consider this a fatal error and quit the program
--- liquidwar-5.6.5/utils/liquidwarcol.c	2018-12-23 19:04:36.000000000 +0000
+++ liquidwar-5.6.5/utils/liquidwarcol.c	2025-07-07 11:50:37.758844769 +0100
@@ -430,7 +430,7 @@
             {
               if (FLAG_BACKUP)
                 save_backup (FILENAMES[i]);
-              convert_bitmap (FILENAMES[i]);
+              convert_bitmap ();
               save_file (FILENAMES[i]);
             }
         }