Commitdf00c79

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Error out if not enough parameters are given

Signed-off-by: Sebastian Ramacher <sebastian+dev@ramacher.at>

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Original file line number	Diff line number	Diff line change
`@@ -78,6 +78,10 @@ def main():`
`78`	`78`	`'See AUTHORS for detail.')`
`79`	`79`	`return0`
`80`	`80`
	`81`	`+iflen(args)<2:`
	`82`	`+print('usage: bpdb scriptfile [arg] ...')`
	`83`	`+return2`
	`84`	`+`
`81`	`85`	`# The following code is based on Python's pdb.py.`
`82`	`86`	`mainpyfile=args[1]`
`83`	`87`	`ifnotos.path.exists(mainpyfile):`

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