Fixed behavior if missing library cudnn.lib

AlexeyAB

2017-01-15 3b9afd4cd2efcfeb9699f1d9658c8509e08e58fb

 src/detection_layer.c

@@ -58,7 +58,7 @@
            int index = b*l.inputs;
            for (i = 0; i < locations; ++i) {
                int offset = i*l.classes;
                softmax_array(l.output + index + offset, l.classes, 1,
                softmax(l.output + index + offset, l.classes, 1,
                        l.output + index + offset);
            }
        }