Fix Python 3.8 build support

make-linux-release.sh

 #!/bin/bash
 #!/bin/bash
-PYTHON_VERSIONS="cp27-cp27m cp34-cp34m cp35-cp35m cp36-cp36m cp37-cp37m cp38-cp38m"
+PYTHON_VERSIONS="cp27-cp27m cp34-cp34m cp35-cp35m cp36-cp36m cp37-cp37m cp38-cp38"
 
 
 cd /io
 cd /io
 /opt/python/cp37-cp37m/bin/pip install poetry -U
 /opt/python/cp37-cp37m/bin/pip install poetry -U
@@ -11,5 +11,5 @@ cd /io
     -P "3.5:/opt/python/cp35-cp35m/bin/python" \
     -P "3.5:/opt/python/cp35-cp35m/bin/python" \
     -P "3.6:/opt/python/cp36-cp36m/bin/python" \
     -P "3.6:/opt/python/cp36-cp36m/bin/python" \
     -P "3.7:/opt/python/cp37-cp37m/bin/python" \
     -P "3.7:/opt/python/cp37-cp37m/bin/python" \
-    -P "3.8:/opt/python/cp38-cp38m/bin/python"
+    -P "3.8:/opt/python/cp38-cp38/bin/python"
 cd -
 cd -