Option to create the character deaf

Allows creating your character permanently deaf,
for that added challenge.

Breaks saves.

src/attrib.c

@@ -886,7 +886,8 @@ from_what(int propidx) /* special cases can have negative values */
              * There are exceptions.  Versatile jumping from spell or boots
              * takes priority over knight's innate but limited jumping.
              */
-            if (propidx == BLINDED && u.uroleplay.blind)
+            if ((propidx == BLINDED && u.uroleplay.blind)
+                || (propidx == DEAF && u.uroleplay.deaf))
                 Sprintf(buf, " from birth");
             else if (innateness == FROM_ROLE || innateness == FROM_RACE)
                 Strcpy(buf, " innately");

src/insight.c

@@ -2013,6 +2013,8 @@ show_conduct(int final)
 
     if (u.uroleplay.blind)
         you_have_been("blind from birth");
+    if (u.uroleplay.deaf)
+        you_have_been("deaf from birth");
     if (u.uroleplay.nudist)
         you_have_been("faithfully nudist");
 

src/potion.c

@@ -448,7 +448,8 @@ make_deaf(long xtime, boolean talk)
     if ((xtime != 0L) ^ (old != 0L)) {
         gc.context.botl = TRUE;
         if (talk)
-            You(old ? "can hear again." : "are unable to hear anything.");
+            You(old && !Deaf ? "can hear again."
+                             : "are unable to hear anything.");
     }
 }
 

src/timeout.c

@@ -817,7 +817,8 @@ nh_timeout(void)
                      * to this number must be thoroughly play tested.
                      */
                     if ((inv_weight() > -500)) {
-                        You("make a lot of noise!");
+                        if (!Deaf)
+                            You("make a lot of noise!");
                         wake_nearby();
                     }
                 }

src/topten.c

@@ -591,6 +591,7 @@ encode_extended_conducts(char *buf)
     if (sokoban_in_play())
         add_achieveX(buf, "sokoban",  !u.uconduct.sokocheat);
     add_achieveX(buf, "blind",        u.uroleplay.blind);
+    add_achieveX(buf, "deaf",         u.uroleplay.deaf);
     add_achieveX(buf, "nudist",       u.uroleplay.nudist);
     add_achieveX(buf, "bonesless",    !flags.bones);