genlink: properly escape regexp special characters
Fixes compatibility with mawk, as used on debian and ubuntu now.
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@ -31,9 +31,9 @@ BEGIN {
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gsub(/\r$/,"");
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tmp = "^"$1"$";
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gsub(/?/, ".", tmp);
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gsub(/*/, ".*", tmp);
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gsub(/+/, ".+", tmp);
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gsub(/\?/, ".", tmp);
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gsub(/\*/, ".*", tmp);
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gsub(/\+/, ".+", tmp);
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tolower(tmp);
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if (PAT ~ tmp) {
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