Fix "`build_package_pyston2.2': not a valid identifier"

plugins/python-build/bin/python-build

@@ -858,7 +858,7 @@ build_package_jython_builder() {
   ( cd "dist" && build_package_jython )
 }
 
-build_package_pyston2.2() {
+build_package_pyston2_2() {
   # currently supported version 2.2 and 2.3
   build_package_copy
   mkdir -p "${PREFIX_PATH}/bin" "${PREFIX_PATH}/lib"

plugins/python-build/share/python-build/pyston-2.2

@@ -6,7 +6,7 @@ echo
 
 case "$(pyston_architecture 2>/dev/null || true)" in
 "linux64" )
-  install_package "pyston_2.2" "https://github.com/pyston/pyston/releases/download/pyston_2.2/pyston_2.2_portable.tar.gz#d113cc4d1f6821c0f117f7a84978823d8ac751d7970fa7841eb994663ec5a59f" "pyston2.2" verify_py38 get_pip
+  install_package "pyston_2.2" "https://github.com/pyston/pyston/releases/download/pyston_2.2/pyston_2.2_portable.tar.gz#d113cc4d1f6821c0f117f7a84978823d8ac751d7970fa7841eb994663ec5a59f" "pyston2_2" verify_py38 get_pip
   ;;
 * )
   { echo

plugins/python-build/share/python-build/pyston-2.3

@@ -6,7 +6,7 @@ echo
 
 case "$(pyston_architecture 2>/dev/null || true)" in
 "linux64" )
-  install_package "pyston_2.3" "https://github.com/pyston/pyston/releases/download/v2.3/pyston_2.3_portable-v2.tar.gz#90185e29e4a1a19562c095f2bb4e81a5d0715150fa10eca363ec1188b5ba7ee7" "pyston2.2" verify_py38 get_pip
+  install_package "pyston_2.3" "https://github.com/pyston/pyston/releases/download/v2.3/pyston_2.3_portable-v2.tar.gz#90185e29e4a1a19562c095f2bb4e81a5d0715150fa10eca363ec1188b5ba7ee7" "pyston2_2" verify_py38 get_pip
   ;;
 * )
   { echo