Fix incorrect error message in binarycreator.
Fix incorrect error message in binarycreator.

This happened when calling binarycreator with -i and -n at the same time.
Also fix a similar error when calling with -f -n.
Also improve the error message when using -n together with -i or -e.

Task-number: QTIFW-189
Change-Id: I369b218172997d2b46b3209ab13dfc4101767a5c
Reviewed-by: Leena Miettinen <885fda02d52616fec24ed5fed9b3f0568fce3ead@digia.com>
Reviewed-by: Kai Koehne <077bc265216106fb22408e62f2d97925ede69d10@digia.com>
Reviewed-by: Karsten Heimrich <81d67632fe4bf9afb88a400b41aa25e19a1d2a12@digia.com>
Reviewed-by: Tim Jenssen <6a21f175c697b4129e1bafb6e9b52078bb1a6738@digia.com>

olear/qtifw,olear/qtifw,olear/qtifw,olear/qtifw