we don't do any voodoo here, any sed(1) will do

jabberd/jabberd.spec

@@ -53,7 +53,7 @@ Patch0:       jabberd.patch
 #   build information
 Prefix:       %{l_prefix}
 BuildRoot:    %{l_buildroot}
-BuildPreReq:  OpenPKG, openpkg >= 20060823, make, sed
+BuildPreReq:  OpenPKG, openpkg >= 20060823, make
 PreReq:       OpenPKG, openpkg >= 20060823, perl
 BuildPreReq:  pth, openssl, libidn, libiconv
 PreReq:       pth, openssl, libidn, libiconv