Rework vlc_tag/rc

vlc.spec

@@ -1,7 +1,7 @@
 %global vlc_date	20180921
-#global vlc_rc		rc9
-%global vlc_tag         -%%{?vlc_date}-0223-%%{?vlc_rc}
-%if 0%{?vlc_rc:1}
+#global vlc_rc		-rc9
+%global vlc_tag         -%{?vlc_date}-0223
+%if 0%{?vlc_tag:1}
 %global vlc_url https://nightlies.videolan.org/build/source/
 %else
 %global vlc_url https://download.videolan.org/pub/videolan/vlc/
@@ -46,7 +46,7 @@ Version:	3.0.5
 Release:	1%{?dist}
 License:	GPLv2+
 URL:		https://www.videolan.org
-Source0:	%{vlc_url}/%{?!vlc_rc:%{version}/}vlc-%{version}%{?vlc_tag}.tar.xz
+Source0:	%{vlc_url}/%{?!vlc_tag:%{version}/}vlc-%{version}%{?vlc_tag}.tar.xz
 Patch0:         0001-Workaround-a-bug-with-.-vlc-cache-gen-on-armhfp.patch
 
 BuildRequires:	desktop-file-utils
@@ -286,7 +286,7 @@ VLC media player extras modules.
 
 
 %prep
-%autosetup -p1 -n %{name}-%{version}%{?vlc_rc:-%{vlc_rc}}
+%autosetup -p1 -n %{name}-%{version}%{?vlc_rc}
 
 %if 0%{?rhel} == 7
 . /opt/rh/devtoolset-7/enable