* minor adjustment to the qt5 finder

8 jobs for featureQt5.6Support
Status Job ID Name Coverage
  Test
passed #5043
MultiThreads Linux
clang-c++11-Qt4

00:08:24

passed #5047
MultiThreads Linux
clang-c++11-Qt5

00:07:42

passed #5045
MultiThreads Linux
clang-c++98-Qt4

00:06:52

passed #5049
MultiThreads Linux
clang-c++98-Qt5

00:07:58

passed #5042
Linux
gcc-c++11-Qt4

00:02:52

passed #5046
Linux
gcc-c++11-Qt5

00:03:02

passed #5044
Linux
gcc-c++98-Qt4

00:02:27

passed #5048
Linux
gcc-c++98-Qt5

00:03:01