Switch to new package format

info.yml

@@ -1,7 +1,7 @@
 name: python-flit-core
 description: A PEP 517 build backend for packages using Flit
 version: 4.0.0
-revision: 3
+revision: 4
 url: https://pypi.org/project/flit-core/
 license: BSD-3-Clause
 maintainers:

recipe.sh

@@ -1,4 +1,4 @@
-# This is the source.sh script. It is executed by BPM in a temporary directory when compiling a source package
+# This is the recipe.sh script. It is executed by BPM in a temporary directory when compiling a source package
 # BPM Expects the source code to be extracted into the automatically created 'source' directory which can be accessed using $BPM_SOURCE
 # BPM Expects the output files to be present in the automatically created 'output' directory which can be accessed using $BPM_OUTPUT