[perl-Tk] document "useless" provides filtering

[Iain Arnell]

commit 6d36ba8fa1c93ab545d380e2423d85dda70eefa8
Author: Iain Arnell <iarnell at gmail.com>
Date:   Wed Jun 22 17:55:23 2011 +0200

    document "useless" provides filtering

 perl-Tk.spec |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/perl-Tk.spec b/perl-Tk.spec
index 27c2f10..cac02f4 100644
--- a/perl-Tk.spec
+++ b/perl-Tk.spec
@@ -31,6 +31,8 @@ Provides:       perl(Tk::TextReindex)
 Provides:       perl(Tk) = %{version}
 
 %{?perl_default_filter}
+# Explicity filter "useless" unversioned provides. For some reason, rpm is
+# detecting these both with and without version.
 %global __provides_exclude %{?__provides_exclude:%__provides_exclude|}perl\\(Tk\\)
 %global __provides_exclude %__provides_exclude|perl\\(Tk::Clipboard\\)$
 %global __provides_exclude %__provides_exclude|perl\\(Tk::Frame\\)$