Fix appendLengthEncodedInteger for large numbers > 0xffffff
Fix appendLengthEncodedInteger for large numbers > 0xffffff

jockchou/mysql,LightKool/mysql-go,roth1002/mysql,helight/helight_code,cw2018/mysql,yonglehou/mysql,yyljlyy/mysql,cxflag203/mysql,helight/helight_code,VividCortex/mysql,segmentio/mysql,helight/helight_code,helight/helight_code,segmentio/mysql,methane/mysql,helight/helight_code,hyperworks/mysql,LightKool/mysql-go,netroby/mysql,bookerzzz/mysql,methane/mysql,Frca/mysql,Freeaqingme/golang-sql-driver-mysql,eklitzke/mysql,henrylee2cn/mysql,sunjian1/mysql,eXcomm/gomysql,zhgo/mysql,wfxiang08/mysql,helight/helight_code,hebihui/mysql,helight/helight_code,Vorstack/mysql,bookerzzz/mysql,VividCortex/mysql,beego/mysql,Go-SQL-Driver/MySQL,siriele/mysql,aperera/mysql,rlowe/mysql,helight/helight_code,muthusubbu459/mysql,chinanjjohn2012/mysql,go-sql-driver/mysql,helight/helight_code,nanata1115/mysql,joshuaprunier/mysql,rafaeljusto/mysql,tmulchay/mysql,springning/mysql