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ref: 15974d06bbaad287382c6eeb8deb7c6f3a627278
parent: 5bd02f982a878312065b4d81d05a90bc41a98c6c
author: Ben Harris <bjh21@bjh21.me.uk>
date: Mon Jan 9 10:07:24 EST 2023

Towers: reject descriptions with odd characters at the end

Towers' new_game() causes an assertion failure on game description
strings that contain spurious characters after a valid description, so
validate_desc() should also refuse such a description.  The problem
could be demonstrated by editing the game description in the
"Specific" dialogue box to add a '!' at the end, which caused
"new_game: Assertion `!*p' failed.".

--- a/towers.c

+++ b/towers.c

@@ -893,6 +893,7 @@

 	    return "Too much data to fit in grid";

     }

+    if (*p) return "Rubbish at end of game description";

     return NULL;

 }