Relax RSpec dependency.

It seems that the test suite is passing with RSpec 3.x just fine.

https://github.com/jgarber/redcloth/pull/64

rubygem-RedCloth.spec

@@ -3,7 +3,7 @@
 
 Name: rubygem-%{gem_name}
 Version: 4.3.2
-Release: 14%{?dist}
+Release: 15%{?dist}
 Summary: Textile parser for Ruby
 License: MIT
 URL: http://redcloth.org
@@ -16,7 +16,8 @@ Patch0: rubygem-redcloth-4.2.9-unsigned-char-fix.patch
 Patch1: rubygem-RedCloth-4.3.2-Replace-deprecated-YAML-load_documents.patch
 BuildRequires: ruby(release)
 BuildRequires: rubygems-devel
-BuildRequires: rubygem(rspec) < 3
+BuildRequires: rubygem(rspec)
+#BuildRequires: rubygem(rspec) < 3
 #BuildRequires: rubygem(rspec-core) < 3
 #BuildRequires: rubygem(rspec-mocks) < 3
 #BuildRequires: rubygem(rspec-expectations) < 3
@@ -76,7 +77,7 @@ find %{buildroot}%{gem_instdir}/bin -type f | xargs chmod a+x
 
 %check 
 pushd .%{gem_instdir}
-rspec2 -I$(dirs +1)%{gem_extdir_mri} spec
+rspec -I$(dirs +1)%{gem_extdir_mri} spec
 popd
 
 %files
@@ -102,6 +103,9 @@ popd
 %{gem_instdir}/tasks
 
 %changelog
+* Thu Oct 22 2020 Vít Ondruch <vondruch@redhat.com> - 4.3.2-15
+- Relax RSpec dependency.
+
 * Wed Jul 29 2020 Fedora Release Engineering <releng@fedoraproject.org> - 4.3.2-14
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild