- filter: fix rules count when data doesn't end with a newline

home/filter.go

@@ -461,28 +461,29 @@ func (f *Filtering) parseFilterContents(file io.Reader) (int, uint32, string) {
 
 	for {
 		line, err := r.ReadString('\n')
-		if err != nil {
-			break
-		}
-
 		checksum = crc32.Update(checksum, crc32.IEEETable, []byte(line))
 
 		line = strings.TrimSpace(line)
 		if len(line) == 0 {
-			continue
-		}
+			//
 
-		if line[0] == '!' {
+		} else if line[0] == '!' {
 			m := f.filterTitleRegexp.FindAllStringSubmatch(line, -1)
 			if len(m) > 0 && len(m[0]) >= 2 && !seenTitle {
 				name = m[0][1]
 				seenTitle = true
 			}
+
 		} else if line[0] == '#' {
-			continue
+			//
+
 		} else {
 			rulesCount++
 		}
+
+		if err != nil {
+			break
+		}
 	}
 
 	return rulesCount, checksum, name