rogue4: fix restoring saved games on Windows/MinGW.

README.txt

@@ -34,8 +34,8 @@ fixed soon.
 It is recommended to run 'configure' with the '--disable-logfile' option, and
 'make' with the 'LDFLAGS=-static' option.
 
-The games should all build with MinGW, but there are still bugs with arrow keys
-and saving/restoring.
+The games should all build with MinGW and run, but Super-Rogue has problems
+with restoring saved games.
 
 See the individual games' subdirectories for further documentation.  Some of 
 the manpages may be outdated, but the guides to playing should be accurate.

rogue4/save.c

@@ -276,7 +276,7 @@ char **envp;
 #ifdef WIZARD
 	!wizard &&
 #endif
-    md_unlink(file) < 0)
+    md_unlink_open_file(file, inf) < 0)
     {
         endwin();
 	printf("Cannot unlink file\n");