Include program name in errors; warn if input file does not exist, etc.
Include program name in errors; warn if input file does not exist, etc.

thrig/scripts,thrig/scripts,princeofdarkness76/sial.org-scripts,princeofdarkness76/sial.org-scripts,thrig/scripts,thrig/scripts,thrig/scripts,princeofdarkness76/sial.org-scripts,princeofdarkness76/sial.org-scripts,thrig/scripts,princeofdarkness76/sial.org-scripts