Fix typos that led to inappropriate testing and possible NPE

ludovicp

29.22.2008 986a6ef713280bd2b54718cdedec83ce0f9422d9

 opends/src/quicksetup/org/opends/quicksetup/installer/Installer.java

@@ -3942,6 +3942,7 @@
    {
      suffixes.add(replica.getSuffix());
    }
    // BUG: suf can be null here below
    getUserData().setSuffixesToReplicateOptions(
        new SuffixesToReplicateOptions(type, suffixes, suf.getSuffixes()));
  }