re-adjust indentation

proftpd/proftpd.conf

@@ -23,7 +23,7 @@ ListOptions           "-l"
 @l_pam@AuthPAM               on
 @l_pam@AuthPAMConfig         proftpd
 @l_pam@AuthPAMAuthoritative  off
-#PersistentPasswd   off
+#PersistentPasswd     off
 
 TimeoutLogin          120
 TimeoutNoTransfer     600