Error when starting lrelease from menue Tools/External/Linguist

When starting lrelease from menue, lrelease aborted with error message:

Could not find qmake configuration directory. Could not find configuration file. Using OS scope before setting MAKEFILE_GENERATOR

I think the reason is an error in 'lrelease' 'main.cpp':

Line 386: binDir = filePath.filePath();

now 'binDir' is not the directory of 'qmake.exe' because function 'filePath()' returns file name and path of 'lrelease'.

It has to be:

Line 386: binDir = filePath.absolutePath();