Fixed bug #25070 (Don't forget to unlock session files on win32 before

closing them).

Regions should be locked only briefly and should be unlocked before
closing a file or exiting the program. On Win32 locked files that are
closed without being explicitly unlocked will be unlocked only when "system
resources become avaliable".

ext/session/mod_files.c

@@ -127,6 +127,7 @@ static char *ps_files_path_create(char *buf, size_t buflen, ps_files *data, cons
 static void ps_files_close(ps_files *data)
 {
 	if (data->fd != -1) {
+		flock(data->fd, LOCK_UN);
 		close(data->fd);
 		data->fd = -1;
 	}