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Fix wrong test: boolean variable is never negative
This has been spotted by clang++.
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@ -878,7 +878,7 @@ void LyXComm::endPipe(int & fd, string const & filename, bool write)
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<< '\n' << strerror(errno) << endl;
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}
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if (FileName(filename).removeFile() < 0) {
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if (!FileName(filename).removeFile()) {
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lyxerr << "LyXComm: Could not remove pipe " << filename
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<< '\n' << strerror(errno) << endl;
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}
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