Corrected Sword Stick equip requirements (#4091)

* Fixes #4089.
* Sword Stick can be equipped by all Mage-based classes, not just Wizards.
Thanks to @cahya1992!

db/re/item_db.txt

@@ -1019,7 +1019,7 @@
 1665,Piercing_Staff_,Piercing Staff,5,20,,500,80:145,,1,2,0x00018314,18,2,2,3,70,1,10,{ .@r = getrefine(); bonus bInt,4; bonus2 bIgnoreMdefClassRate,Class_Normal,10+.@r; bonus2 bIgnoreMdefClassRate,Class_Boss,10+.@r; },{},{}
 1666,Healing_Staff_,Healing Staff,5,20,,400,10:105,,1,2,0x00008110,63,2,2,3,55,1,10,{ bonus bAtkEle,Ele_Holy; bonus bHealPower,(getrefine()*3/2); },{},{}
 1667,TE_Woe_Staff,TE Woe Staff,5,0,,0,50:100,,1,0,0x00818315,63,2,2,3,40,1,10,{ bonus2 bMagicAddRace,RC_Player,10; bonus3 bAddEff,Eff_Blind,1000,ATF_MAGIC; bonus bHPRecovRate,5; bonus bSPRecovRate,5; },{},{}
-1668,Sword_Stick,Sword Stick,5,10,,500,120:150,,,2,0x800200,63,2,2,4,80,1,10,{ bonus bAspdRate,10; },{},{}
+1668,Sword_Stick,Sword Stick,5,10,,500,120:150,,,2,0x810204,63,2,2,4,80,1,10,{ bonus bAspdRate,10; },{},{}
 1669,Thanos_Staff,Thanos Staff,5,10,,1000,100:200,,1,1,0x00018314,56,2,2,4,120,1,10,{ bonus bInt,6; bonus bVit,6; bonus bLuk,-6; bonus bHealPower,15; bonus bMagicHPGainValue,500; bonus bMagicSPGainValue,50; bonus2 bHPLossRate,100,10000; },{},{ heal -1000,0; }
 1670,RWC_Memory_Staff,RWC Memory Staff,5,20,,500,25:30,,1,1,0x00818315,63,2,2,3,1,1,10,{ .@r = getrefine(); bonus bMatk,30*(.@r/3); if(.@r>=6) bonus2 bMagicAddClass,Class_All,(.@r>=9?10:5); if(.@r>=9) bonus4 bAutoSpell,"HW_MAGICPOWER",1,10,0; },{},{}
 1671,Devil_Won_Staff,Evil Slayer Vanquisher Staff,5,0,,800,30:155,,,1,0x00818315,63,2,2,3,100,1,10,{ bonus2 bAddRace,RC_Undead,10; bonus2 bAddRace,RC_Demon,10; bonus2 bMagicAddRace,RC_Undead,10; bonus2 bMagicAddRace,RC_Demon,10; .@r = getrefine(); if(.@r>=9) { .@dmg = 5; if(.@r>=12) { .@dmg += 7; } bonus bMatkRate,.@dmg; } },{},{}