Fix possible fail to check for dependencies

Fix possible fail to check for dependencies

Few characters in filenames (a plus sign, a dot) can be interpreted
specially by grep. This can lead to the omission of missing package
dependency. For example if we would have "some.file.so" then it
matches also "some2file.so". -F switch off special meaning
of any character and -x match against whole line.

Signed-off-by: Sławomir Demeszko <s.demeszko@wireless-instruments.com>
SVN-Revision: 44247