Updated required xrootd version.

cta.spec.in

@@ -37,10 +37,10 @@ BuildRequires: cmake >= 2.6 redhat-rpm-config
 # The CTA client is the only component of CTA that can be compiled on both SLC6
 # and C77, therefore only the packages it depends on are required for SLC6
 %define radosVersion 2:12.2.2
-BuildRequires: xrootd-client-devel  >= 1:4.8.2
-BuildRequires: xrootd-devel         >= 1:4.8.2
-BuildRequires: xrootd-server-devel  >= 1:4.8.2
-BuildRequires: xrootd-private-devel >= 1:4.8.2
+BuildRequires: xrootd-client-devel  >= 1:4.10.0
+BuildRequires: xrootd-devel         >= 1:4.10.0
+BuildRequires: xrootd-server-devel  >= 1:4.10.0
+BuildRequires: xrootd-private-devel >= 1:4.10.0
 BuildRequires: librados-devel = %{radosVersion}, libradosstriper-devel = %{radosVersion}, 
 BuildRequires: protobuf3-compiler >= 3.3.1 protobuf3-devel >= 3.3.1
 BuildRequires: gmock-devel >= 1.5.0 gtest-devel >= 1.5.0