fix sed commands to remove rpath from pc files as suggested by Emanuele Di Giacomo

eccodes.spec

@@ -1,6 +1,6 @@
 Name:           eccodes
 Version:        2.13.0
-Release:        1%{?dist}
+Release:        2%{?dist}
 Summary:        WMO data format decoding and encoding
 
 # force the shared libraries to have these so versions
@@ -357,6 +357,9 @@ ctest3 -V %{?_smp_mflags}
 %doc %{_datadir}/doc/%{name}/
 
 %changelog
+* Sat Aug 10 2019 Jos de Kloe <josdekloe@gmail.com> - 2.13.0-2
+- apply bugfix to pc files contribuited by Emanuele Di Giacomo
+
 * Thu Jul 25 2019 Jos de Kloe <josdekloe@gmail.com> - 2.13.0-1
 - Upgrade to upstream version 2.13.0