revert COM_StripPort to previous dynamic version

Quake/common.c

@@ -1740,23 +1740,15 @@ COM_StripPort -- woods #historymenu
 */
 const char* COM_StripPort (const char* str)
 {
-	static char	noport[MAX_QPATH];
-	char* p;
-
-	if (!str || !*str)
-		return str;
-
-	q_strlcpy(noport, str, sizeof(noport));
-
-	if ((p = Q_strrchr(noport, ':')) == NULL) // look for the colon in a regular address
-		return str;
-
-	if (strchr(p, ']')) // look for the colon after the IPv6 address
-		return str;
-
-	*p = '\0';
-
-	return noport;
+	const char* colon = strchr(str, ':');
+	size_t length = colon ? (colon - str) : strlen(str);
+	char* newStr = malloc(length + 1);
+	if (newStr)
+	{
+		strncpy(newStr, str, length);
+		newStr[length] = '\0';
+	}
+	return newStr;
 }
 
 /*