Further mass cleanup. One or more apply :

- Remove (hopefully) all zero epoch remains.
- Remove trailing spaces and tabs.
- Keep consistency between tabs and spaces.
- Clean up summary.

rrdtool.spec

@@ -67,7 +67,7 @@ RRDtool bindings to the PHP HTML-embedded scripting language.
 %{__make} install DESTDIR="%{rrdtmpdir}"
 pushd contrib/php4
     ./configure \
-	--with-rrdtool="%{rrdtmpdir}%{_prefix}"
+        --with-rrdtool="%{rrdtmpdir}%{_prefix}"
     %{__make} %{?_smp_mflags}
 popd
 %{__rm} -rf %{rrdtmpdir}