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+        UPC-A Barcode Image Generator Program "upc", by Tyler Delgadillo
+
+    This program converts an 11-digit number into a TGA image file representing a UPC-A barcode.
+
+    Invoke at the command line. This program expects an argument in the form of an 11-digit number.
+You may include spaces to delimit the number system digit, manufacturer code, and product code.
+Additionally, the check digit is calculated automatically.
+
+	Command Line Options:
+		-o : specify output filename, defaults to "img.tga"
+		-n : include human-readable numeric digits in the image