Set the login shell of new members

Somehow this got left out of addmember. The default
is sh which isn't terribly friendly.

src/ldap.c

@@ -120,6 +120,12 @@ int ceo_add_user(char *uid, char *basedn, char *objclass, char *cn, char *home,
     char *cns[] = { cn, NULL };
     mods[i]->mod_values = cns;
 
+    mods[++i] = xmalloc(sizeof(LDAPMod));
+    mods[i]->mod_op = LDAP_MOD_ADD;
+    mods[i]->mod_type = "loginShell";
+    char *shells[] = { shell, NULL };
+    mods[i]->mod_values = shells;
+
     mods[++i] = xmalloc(sizeof(LDAPMod));
     mods[i]->mod_op = LDAP_MOD_ADD;
     mods[i]->mod_type = "uidNumber";