Merge branch 'fix-mercenary-upgrade' into 'pregmod-master'

Fix syntax error in cashX() invocation when upgrading mercenaries

See merge request !3367

src/SecExp/seeUnit.tw

@@ -397,7 +397,7 @@
 		<br>
 		<<link "Improve weaponry and equipment" "seeUnit">>
 			<<set $mercUnits[$targetIndex].equip += 1>>
-			<<run cashX(forceNeg($equipUpgradeCost * $mercUnits[$targetIndex].maxTroops) + 1000), "securityExpansion")>>
+			<<run cashX(forceNeg(($equipUpgradeCost * $mercUnits[$targetIndex].maxTroops) + 1000), "securityExpansion")>>
 		<</link>>
 		Invest in better equipment for your soldiers to increase their battle effectiveness.
 		<br>//Costs <<print cashFormat(($equipUpgradeCost * $mercUnits[$targetIndex].maxTroops) + 1000)>> and will increase attack and defense value of the unit by 15% for every upgrade.//