Fix parameter of set_passwd_ldap_user error

login is a string and not an instance of user.

issue4394
review13761003
(grafted from cab8d2b8e6819e150d6d22c94c9a7a896f3f04df)

--HG--
branch : 3.4
extra : source : cab8d2b8e6819e150d6d22c94c9a7a896f3f04df
Sync dependencies in INSTALL

issue4379
review7761002
(grafted from f42f6db6ac0205c033a0c72e20f675865eed73ac)

--HG--
branch : 3.4
extra : source : f42f6db6ac0205c033a0c72e20f675865eed73ac