Backport %gpgverify API simplification

Allow EPEL packages to use the simpler %gpgverify API which is available
in Fedora.  This incorporates the changes made to redhat-rpm-config in
the following commits:

    3490049 (Simplify the API of %gpgverify, 2019-07-25)
    4d93255 (Fix the simple API of %gpgverify, 2019-11-01)

epel-rpm-macros.spec

@@ -1,6 +1,6 @@
 Name:           epel-rpm-macros
 Version:        8
-Release:        19
+Release:        20
 Summary:        Extra Packages for Enterprise Linux RPM macros
 
 Group:          System Environment/Base
@@ -85,6 +85,9 @@ install -Dpm 755 %{SOURCE24} \
 
 
 %changelog
+* Sat May 01 2021 Todd Zullinger <tmz@pobox.com> - 8-20
+- Backport %%gpgverify API simplification
+
 * Tue Dec 22 2020 Miro Hrončok <mhroncok@redhat.com> - 8-19
 - Define %%python_disable_dependency_generator
 

macros.epel-rpm-macros

@@ -87,7 +87,22 @@
 %{nil}
 
 # gpgverify verifies signed sources. There is documentation in the script.
-%gpgverify %{_rpmconfigdir}/gpgverify
+%gpgverify(k:s:d:) %{lua:
+local script = rpm.expand("%{_rpmconfigdir}/gpgverify ")
+local keyring = rpm.expand("%{-k*}")
+local signature = rpm.expand("%{-s*}")
+local data = rpm.expand("%{-d*}")
+print(script)
+if keyring ~= "" then
+  print(rpm.expand("--keyring='%{SOURCE" .. keyring ..  "}' "))
+end
+if signature ~= "" then
+  print(rpm.expand("--signature='%{SOURCE" .. signature ..  "}' "))
+end
+if data ~= "" then
+  print(rpm.expand("--data='%{SOURCE" .. data ..  "}' "))
+end
+}
 
 # qt5 macro removed from RHEL8 but needed to ensure qtwebengine, and 
 #  it's dependencies build on supported arches.