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[dotty-progress] added usage information

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1 parent 3c5cea0 commit 2ca6ab0ec701acfbb0f93a02a10a38458eb171a9 @masak committed May 14, 2009
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  1. +3 −0 dotty-progress
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3 dotty-progress
@@ -2,6 +2,9 @@
use strict;
$| = 1; # autoflush on
+die "Usage: $0 <action> <number-of-lines>\n"
+ unless @ARGV == 2;
+
my $action = shift;
my $number_of_lines = shift;

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