close file used for linux maxRcfBufSize
close file used for linux maxRcfBufSize

Lupus/go-udtwrapper,Lupus/go-udtwrapper,Syncbak-Git/go-udtwrapper,Lupus/go-udtwrapper,Syncbak-Git/go-udtwrapper,Lupus/go-udtwrapper,Syncbak-Git/go-udtwrapper,Syncbak-Git/go-udtwrapper