- change nss-pam-ldapd and pam_ldap from "default" to "optional"

We install sssd by default, and authconfig prefers to use sssd if it's
  available, so we don't lose anything by this.  It should also lessen
  the chances of file collisions of the type reported in #604978.

comps-f14.xml.in

@@ -274,7 +274,6 @@
       <packagereq type="default">nc</packagereq>
       <packagereq type="default">nfs-utils</packagereq>
       <packagereq type="default">nss_db</packagereq>
-      <packagereq type="default">nss-pam-ldapd</packagereq>
       <packagereq type="default">ntfs-3g</packagereq>
       <packagereq type="default">ntfsprogs</packagereq>
       <packagereq type="default">numactl</packagereq>
@@ -282,7 +281,6 @@
       <packagereq type="default">PackageKit-yum-plugin</packagereq>
       <packagereq type="default">pam_ccreds</packagereq>
       <packagereq type="default">pam_krb5</packagereq>
-      <packagereq type="default">pam_ldap</packagereq>
       <packagereq type="default">pam_passwdqc</packagereq>
       <packagereq type="default">pam_pkcs11</packagereq>
       <packagereq type="default">pam_smb</packagereq>
@@ -347,6 +345,8 @@
       <packagereq type="optional">mgetty</packagereq>
       <packagereq type="optional">mkbootdisk</packagereq>
       <packagereq type="optional">mtools</packagereq>
+      <packagereq type="optional">nss-pam-ldapd</packagereq>
+      <packagereq type="optional">pam_ldap</packagereq>
       <packagereq type="optional">pax</packagereq>
       <packagereq type="optional">redhat-lsb</packagereq>
       <packagereq type="optional">reiserfs-utils</packagereq>