This code sets LANG=en_US so that the method comment(), which returns a translated
name, can be compared with an expected result in English.
(QMimeType::comment uses QLocale::system().name() and QLocale::system().uiLanguages())
But LANG= has no effect if LC_ALL is set, so LC_ALL needs to be cleared (or set
to en_US) for the test to work.
Change-Id: Icb031057769be9bc8c0fcab65daa45e7bf1d5b18
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
848d3694f6