Fixed signed/unsigned comparison issues with natural heal system

git-svn-id: https://svn.code.sf.net/p/rathena/svn/trunk@8337 54d463be-8e91-2dee-dedb-b68131a5f0ec

Changelog-Trunk.txt

@@ -3,6 +3,8 @@ Date	Added
 AS OF SVN REV. 5091, WE ARE NOW USING TRUNK.  ALL UNTESTED BUGFIXES/FEATURES GO INTO TRUNK.
 IF YOU HAVE A WORKING AND TESTED BUGFIX PUT IT INTO STABLE AS WELL AS TRUNK.
 
+2006/08/18
+	* Fixed signed/unsigned comparison issues with natural heal system [Toms]
 2006/08/17
 	* Vaporize will no fail when the homun is dead. [Skotlex]
 	* Corrected thhe double free issue that occurs when a homun dies and has no

src/map/battle.h

@@ -196,9 +196,9 @@ extern struct Battle_Config {
 	unsigned short wedding_modifydisplay;
 	unsigned short wedding_ignorepalette;	//[Skotlex]
 	unsigned short xmas_ignorepalette;	// [Valaris]
-	int natural_healhp_interval;
-	int natural_healsp_interval;
-	int natural_heal_skill_interval;
+	unsigned int natural_healhp_interval;
+	unsigned int natural_healsp_interval;
+	unsigned int natural_heal_skill_interval;
 	unsigned short natural_heal_weight_rate;
 	unsigned short item_name_override_grffile;
 	unsigned short indoors_override_grffile;	// [Celest]