Fix missing gsub argument

Author: vaisest

src/Classes/CompareBuySimilar.lua

@@ -432,7 +432,7 @@ function M.openPopup(item, slotName, primaryBuild)
 		-- Truncate long mod text to fit
 		--- @type string
 		local displayText = entry.formatted
-		local colorCodeLength = displayText:match("(%^x%x%x%x%x%x%x)") or displayText:gsub("(%^%x)") or ""
+		local colorCodeLength = displayText:match("(%^x%x%x%x%x%x%x)") or displayText:gsub("(%^%x)", "") or ""
 		if not canSearch then
 			-- strip color codes and replace with gray
 			displayText = "^8" .. displayText:gsub("%^x%x%x%x%x%x%x", ""):gsub("%^%x", "")