Adjust sleep spell, and monk starting spell

Tone down sleep level to 3 (hitting a monster does tend to wake
it up), and replace the random monk starting sleep spell with
confuse monster, which fits nicely with monk's bare-handed
fighting style.

doc/fixes3-7-0.txt

@@ -801,6 +801,7 @@ always give a message when monster changes form via polytrap if seen
 illiterate hero receiving a spellbook from their deity gets the spell shoved
 	directly into their mind instead
 adjust levels of sleep, confuse monster, and charm monster spells
+replace monk starting sleep spell with confuse monster
 chargeable rings have a chance of getting charged when hit with electricity
 
 

include/objects.h

@@ -1211,7 +1211,7 @@ SPELL("fireball",        "ragged",
 SPELL("cone of cold",    "dog eared",
       P_ATTACK_SPELL,      10,  7, 4, 1, RAY, HI_PAPER, SPE_CONE_OF_COLD),
 SPELL("sleep",           "mottled",
-      P_ENCHANTMENT_SPELL, 30,  1, 4, 1, RAY, HI_PAPER, SPE_SLEEP),
+      P_ENCHANTMENT_SPELL, 30,  1, 3, 1, RAY, HI_PAPER, SPE_SLEEP),
 SPELL("finger of death", "stained",
       P_ATTACK_SPELL,       5, 10, 7, 1, RAY, HI_PAPER, SPE_FINGER_OF_DEATH),
 SPELL("light",           "cloth",

src/u_init.c

@@ -737,7 +737,7 @@ u_init(void)
         skill_init(Skill_K);
         break;
     case PM_MONK: {
-        static short M_spell[] = { SPE_HEALING, SPE_PROTECTION, SPE_SLEEP };
+        static short M_spell[] = { SPE_HEALING, SPE_PROTECTION, SPE_CONFUSE_MONSTER };
 
         Monk[M_BOOK].trotyp = M_spell[rn2(90) / 30]; /* [0..2] */
         ini_inv(Monk);