Fix bug in grep method
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@ -83,6 +83,9 @@ public class StringUtil {
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result.append(line).append('\n');
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result.append(line).append('\n');
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}
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}
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}
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}
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return result.deleteCharAt(result.length() - 1).toString();
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if (result.length() >= 2) {
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result = result.deleteCharAt(result.length() - 1);
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}
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return result.toString();
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}
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}
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}
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}
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