nix.spec.in: RHEL 7/CentOS 7 do not require a group for each package.

nix.spec.in

@@ -6,7 +6,7 @@ Name: nix
 Version: @PACKAGE_VERSION@
 Release: 2%{?dist}
 License: LGPLv2+
-%if 0%{?rhel}
+%if 0%{?rhel} && 0%{?rhel} < 7
 Group: Applications/System
 %endif
 URL: http://nixos.org/
@@ -41,7 +41,7 @@ it can be used equally well under other Unix systems.
 
 %package        devel
 Summary:        Development files for %{name}
-%if 0%{?rhel}
+%if 0%{?rhel} && 0%{?rhel} < 7
 Group:          Development/Libraries
 %endif
 Requires:       %{name}%{?_isa} = %{version}-%{release}
@@ -53,7 +53,7 @@ developing applications that use %{name}.
 
 %package doc
 Summary:        Documentation files for %{name}
-%if 0%{?rhel}
+%if 0%{?rhel} && 0%{?rhel} < 7
 Group:          Documentation
 %endif
 BuildArch:      noarch
@@ -65,7 +65,7 @@ The %{name}-doc package contains documentation files for %{name}.
 
 %package -n emacs-%{name}
 Summary:        Nix mode for Emacs
-%if 0%{?rhel}
+%if 0%{?rhel} && 0%{?rhel} < 7
 Group:          Applications/Editors
 %endif
 BuildArch:      noarch
@@ -77,7 +77,7 @@ This package provides a major mode for editing Nix expressions.
 
 %package -n emacs-%{name}-el
 Summary:        Elisp source files for emacs-%{name}
-%if 0%{?rhel}
+%if 0%{?rhel} && 0%{?rhel} < 7
 Group:          Applications/Editors
 %endif
 BuildArch:      noarch