Add comments with a short explanation and link to the PR request

net/net_linux.go

@@ -615,6 +615,10 @@ func processInet(file string, kind netConnectionKindType, inodes map[string][]in
 		return []connTmp{}, nil
 	}
 
+	// Read the contents of the /proc file with a single read sys call.
+	// This minimizes duplicates in the returned connections
+	// For more info:
+	// https://github.com/shirou/gopsutil/pull/361
 	contents, err := ioutil.ReadFile(file)
 	if err != nil {
 		return nil, err
@@ -672,6 +676,10 @@ func processInet(file string, kind netConnectionKindType, inodes map[string][]in
 }
 
 func processUnix(file string, kind netConnectionKindType, inodes map[string][]inodeMap, filterPid int32) ([]connTmp, error) {
+	// Read the contents of the /proc file with a single read sys call.
+	// This minimizes duplicates in the returned connections
+	// For more info:
+	// https://github.com/shirou/gopsutil/pull/361
 	contents, err := ioutil.ReadFile(file)
 	if err != nil {
 		return nil, err