refex-expr: die when admin forgets to add the required line to the rc
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@ -3,6 +3,8 @@ use strict;
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use warnings;
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my $rule = $ARGV[7];
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die "\n\nFATAL: GL_REFEX_EXPR_ doesn't exist\n(your admin probably forgot the rc file change needed for this to work)\n\n"
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unless exists $ENV{"GL_REFEX_EXPR_" . $rule};
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my $res = $ENV{"GL_REFEX_EXPR_" . $rule} || 0;
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print "$ARGV[6] ($res)\n" if $res;
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