tdeinit: make lnusertemp respect HOME for root

This resolves bug 2739

Signed-off-by: Alexander Golubev <fatzer2@gmail.com>
(cherry picked from commit d23ac70c47)

tdeinit/lnusertemp.c

@@ -124,15 +124,16 @@ int build_link(const char *tmp_prefix, const char *kde_prefix, int kdehostname)
 
   if (kde_home[0] == '~')
   {
-     if (uid == 0)
+     if (!home_dir || !home_dir[0])
      {
+        if ( uid == 0 ) {
            home_dir = pw_ent->pw_dir ? pw_ent->pw_dir : "/root";
         }
-     if (!home_dir || !home_dir[0])
-     {
+        else {
            fprintf(stderr, "[lnusertemp] Aborting. $HOME not set!\n");
            return 1;
         }
+     }
      if (strlen(home_dir) > (PATH_MAX-100))
      {
         fprintf(stderr, "[lnusertemp] Aborting. Home directory path too long!\n");