Don’t use %py_dist_name macro

This makes the spec file robust against it being undefined, in case the
respective macro package is missing when the SRPM is built.

Also, explain the xdist conditional better.

[skip changelog]

Signed-off-by: Nils Philippsen <nils@redhat.com>

python-rpmautospec.spec

@@ -1,4 +1,4 @@
-# when bootstrapping Python, pytest-xdist is not yet available
+# The pytest-xdist package is not available when bootstrapping or for EL builds
 %bcond xdist %{undefined rhel}
 
 # Package the placeholder rpm-macros (moved to redhat-rpm-config in F40)
@@ -16,15 +16,14 @@
 %endif
 
 %global srcname rpmautospec
-%global canonicalname %{py_dist_name %{srcname}}
 
-Name: python-%{canonicalname}
+Name: python-%{srcname}
 Version: 0.6.1
 Release: %autorelease
 Summary: Package and CLI tool to generate release fields and changelogs
 License: MIT
-URL: https://github.com/fedora-infra/%{canonicalname}
-Source0: https://github.com/fedora-infra/%{canonicalname}/releases/download/%{version}/%{canonicalname}-%{version}.tar.gz
+URL: https://github.com/fedora-infra/%{srcname}
+Source0: https://github.com/fedora-infra/%{srcname}/releases/download/%{version}/%{srcname}-%{version}.tar.gz
 
 BuildArch: noarch
 BuildRequires: git
@@ -45,17 +44,17 @@ A package and CLI tool to generate RPM release fields and changelogs.}
 
 %description %_description
 
-%package -n python3-%{canonicalname}
+%package -n python3-%{srcname}
 Summary: %{summary}
 %{?python_provide:%python_provide python3-%{srcname}}
 
-%description -n python3-%{canonicalname} %_description
+%description -n python3-%{srcname} %_description
 
-%package -n %{canonicalname}
+%package -n %{srcname}
 Summary:  CLI tool for generating RPM releases and changelogs
-Requires: python3-%{canonicalname} = %{version}-%{release}
+Requires: python3-%{srcname} = %{version}-%{release}
 
-%description -n %{canonicalname}
+%description -n %{srcname}
 CLI tool for generating RPM releases and changelogs
 
 %if %{with rpmmacropkg}
@@ -102,10 +101,10 @@ install -m 644  rpm/macros.d/macros.rpmautospec %{buildroot}%{rpmmacrodir}/
 --numprocesses=auto
 %endif
 
-%files -n python3-%{canonicalname} -f %{pyproject_files}
+%files -n python3-%{srcname} -f %{pyproject_files}
 %doc README.rst
 
-%files -n %{canonicalname}
+%files -n %{srcname}
 %{_bindir}/rpmautospec
 
 %if %{with rpmmacropkg}