Biocontrol: dont leak filedescriptor

biocontrol.cpp

@@ -78,6 +78,8 @@ void BioControl::execBiocontrol(const std::string& command, const std::string& u
 		while((ret = waitpid(childPid, &exitCode, WNOHANG)) == 0 && --timeout > 0)
 			std::this_thread::sleep_for(std::chrono::milliseconds(500));
 
+		close(biopipe);
+
 		if(ret == 0)
 		{
 			kill(childPid, SIGKILL);
@@ -85,12 +87,9 @@ void BioControl::execBiocontrol(const std::string& command, const std::string& u
 		}
 
 		if(exitCode != 0)
-		{
-			close(biopipe);
 			throw std::runtime_error(std::string(__func__) + ": biocontol failed with: " + std::to_string(exitCode));
 	}
 }
-}
 
 bool BioControl::measure_eis(const std::filesystem::path& outPath, const std::string& userstr, bool retry)
 {