digactualhole() bit

I'm pretty sure this check at_u should be included since x,y
can be passed to digactualhole().  The lack of any related
bug reports suggest that at_u is currently always
true for any code that calls digactualhole().

doc/fixes34.4

@@ -201,6 +201,7 @@ use "your kraken" instead of "a kraken" when searching reveals a tame
 Magicbane should not produce "<something> are confused" message
 handle antholes more sensibly when ants aren't available
 cancelled nurses shouldn't say "Relax, this won't hurt a bit"
+check for hero location in digactualhole() before clearing u.utrap
 
 
 Platform- and/or Interface-Specific Fixes

src/dig.c

@@ -488,7 +488,7 @@ int ttyp;
 	boolean at_u = (x == u.ux) && (y == u.uy);
 	boolean wont_fall = Levitation || Flying;
 
-	if (u.utrap) {
+	if (at_u && u.utrap) {
 	    if (u.utraptype == TT_BURIEDBALL) buried_ball_to_punishment();
 	    else if (u.utraptype == TT_INFLOOR) u.utrap = 0;
 	}