Use of wrong operators in debian.pm caused "nodeset <node> install" to fail for

provisioning an Ubuntu node for x86.  Error was:

    # nodeset <node> install
    Error: Install image not found in /install/ubuntu10.04.2/x86
    Error: Some nodes failed to set up install resources, aborting


git-svn-id: https://svn.code.sf.net/p/xcat/code/xcat-core/trunk@10298 8638fb3e-16cb-4fca-ae20-7b5d299a9bcd

xCAT-server/lib/xcat/plugins/debian.pm

@@ -476,9 +476,9 @@ sub mkinstall
 	    $pkgdir="$installroot/$os/$arch";
 	}
 
-        if ($arch == "x86_64") {
+        if ($arch eq "x86_64") {
             $darch = "amd64";
-        } elsif ($arch == "x86") {
+        } elsif ($arch eq "x86") {
             $darch = "i386";
         } else {
             xCAT::MsgUtils->message("S","debian.pm: Unknown arch ($arch)");