- QMessageBox.warning(None,"Products","Distene's product MeshGem Cleaner is not installed.\nrequired environment variable:\nDISTENE_LICENCE_FILE_FOR_MGCLEANER='/.../dlim8.var.sh'")
+ QMessageBox.warning(None, "Products", """\
+Distene's product MeshGem Cleaner is not installed.
+required environment variable:
+DISTENE_LICENSE_FILE='.../dlim8.var.sh'""")