MAINT: Improve Lua development error msg
MAINT: Improve Lua development error msg

Change-Id: I9e9246ff2052f62a5c7186a86ca8b31985f31153
Reviewed-by: Scott Parlane <85029adc3fa41ef14594a57826619713bfe95f25@alliedtelesis.co.nz>
Signed-off-by: Matt Bennett <e3d8681cec70d3da741935b3385821001b249adc@alliedtelesis.co.nz>

alliedtelesis/buildsyspp,ATL-NZ/buildsyspp