Bug 7002: Gramps crashes when environment varable LANG is not set to C

Force $LANG to have UTF-8 suffix.

git-svn-id: svn+ssh://svn.code.sf.net/p/gramps/code/branches/maintenance/gramps34@22878 4ae1f11a-8b86-4847-b8af-ab372f36d1fd
Fix bug introduced in r22837

git-svn-id: svn+ssh://svn.code.sf.net/p/gramps/code/branches/maintenance/gramps34@22879 4ae1f11a-8b86-4847-b8af-ab372f36d1fd