Add missing print in python installation test

Author: --replace-all

tests/python_opencv_test/test.py

@@ -12,7 +12,7 @@
 def check_build_info():
     success = True
 
-    print("OpenCV Version:")
+    print("OpenCV Version: {}".format(cv2.__version__))
     if (cv2.getVersionMajor() != CURRENT_OPENCV_BUILD_VERSION[0]) and (
             cv2.getVersionMinor() != CURRENT_OPENCV_BUILD_VERSION[1]) and (
             cv2.getVersionRevision() != CURRENT_OPENCV_BUILD_VERSION[2]):