Merge pull request #7 from amuhametov/master

ensure all fd closed

netstat/netstat_linux.go

@@ -221,6 +221,7 @@ func (p *procFd) iterFdDir() {
 				z := bytes.SplitN(buf[:n], []byte(" "), 3)
 				name := getProcName(z[1])
 				p.p = &Process{p.pid, name}
+				stat.Close()
 			}
 			sk.Process = p.p
 		}
@@ -251,6 +252,7 @@ func extractProcInfo(sktab []SockTabEntry) {
 // doNetstat - collect information about network port status
 func doNetstat(path string, fn AcceptFn) ([]SockTabEntry, error) {
 	f, err := os.Open(path)
+	defer f.Close()
 	if err != nil {
 		return nil, err
 	}