Fixed unused tracking for OpenCV 2.x

AlexeyAB

2018-01-11 5424987dd11a3e3d968cbcf625bdfc0bb42e6fc6

 src/utils.c

@@ -286,6 +286,7 @@
        fgets(&line[curr], readsize, fp);
        curr = strlen(line);
    }
    if(line[curr-2] == '\r') line[curr-2] = '\0';
    if(line[curr-1] == '\n') line[curr-1] = '\0';

    return line;