variable: format error message for set wrong value (#27152)
variable: format error message for set wrong value (#27152)

 
pingcap/tidb,ngaut/tidb,ngaut/tidb,c4pt0r/tidb,coocood/tidb,kyle-wang/tidb,pingcap/tidb,pingcap/tidb,kyle-wang/tidb,c4pt0r/tidb,c4pt0r/tidb,kyle-wang/tidb,ngaut/tidb,ngaut/tidb,kyle-wang/tidb,pingcap/tidb,c4pt0r/tidb,c4pt0r/tidb,ngaut/tidb,coocood/tidb,kyle-wang/tidb,ngaut/tidb,kyle-wang/tidb,pingcap/tidb,pingcap/tidb,c4pt0r/tidb