Fixed a typo I made in my typo fix for Stalk / Tunnel Drive speed calculation xD... sorry ^^

git-svn-id: https://svn.code.sf.net/p/rathena/svn/branches/stable@1295 54d463be-8e91-2dee-dedb-b68131a5f0ec

Changelog-SVN.txt

@@ -8,6 +8,7 @@ Date	Added
 	  set to 'no' [celest]
 	* Fixed @monsterbig/@monstersmall not working [celest]
 	* Fixed @killmonster2 not working [celest]
+	* Fixed a typo in my fix for Stalk / Tunnel Drive increasing instead of decreasing speed, sorry [DracoRPG]
 
 03/24
 	* Added some mapflags for new towns [Lupus]

src/map/status.c

@@ -921,7 +921,7 @@ int status_calc_pc(struct map_session_data* sd,int first)
 	if( (skill=pc_checkskill(sd,BS_WEAPONRESEARCH))>0)	// 武器?究の命中率?加
 		sd->hit += skill*2;
 	if(sd->status.option&2 && (skill = pc_checkskill(sd,RG_TUNNELDRIVE))>0 )	// トンネルドライブ	// トンネルドライブ
-		sd->speed = (100-16*skill)*DEFAULT_WALK_SPEED/100;
+		sd->speed += (100-16*skill)*DEFAULT_WALK_SPEED/100;
 		//sd->speed += (1.2*DEFAULT_WALK_SPEED - skill*9);		
 	if (pc_iscarton(sd) && (skill=pc_checkskill(sd,MC_PUSHCART))>0)	// カ?トによる速度低下
 		sd->speed += (10-skill) * (DEFAULT_WALK_SPEED * 0.1);