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  1. or download this
    use warnings;
    use strict;
    
    ...
    sub mysub() {
            print "mysub\n"
    }
    
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    main::mysub() called too early to check prototype
    
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    use warnings;
    use strict;
    ...
    sub mysub() {
            print "mysub\n"
    }
    
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    Too many arguments for main::mysub