Fix (srk induced) crash in new tftp_no_fail code.

src/dnsmasq.c

@@ -655,6 +655,7 @@ int main (int argc, char **argv)
 	          _exit(0);
 	        }
 	    }
+	  else
 	    closedir(dir);
 	}
 
@@ -670,6 +671,7 @@ int main (int argc, char **argv)
 		  _exit(0);
 		}
 	    }
+	  else
 	    closedir(dir);
 	}
     }