Fix NEWS file to not be executable

This tripped up rpminspect's permissions test.

libsigc++20.spec

@@ -3,7 +3,7 @@
 
 Name:           libsigc++20
 Version:        2.10.7
-Release:        2%{?dist}
+Release:        3%{?dist}
 Summary:        Typesafe signal framework for C++
 
 License:        LGPLv2+
@@ -50,6 +50,8 @@ This package contains the full API documentation for %{name}.
 %prep
 %setup -q -n libsigc++-%{version}
 
+chmod -x NEWS
+
 
 %build
 %meson -Dbuild-documentation=true
@@ -79,6 +81,9 @@ This package contains the full API documentation for %{name}.
 
 
 %changelog
+* Tue Aug 24 2021 Kalev Lember <klember@redhat.com> - 2.10.7-3
+- Fix NEWS file to not be executable
+
 * Thu Jul 22 2021 Fedora Release Engineering <releng@fedoraproject.org> - 2.10.7-2
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_35_Mass_Rebuild