[IMP] account: help message

Prof-forma status message was not very clear.
Courtesy of Charline Louis

addons/account/models/account_invoice.py

@@ -213,7 +213,7 @@ class AccountInvoice(models.Model):
         ], string='Status', index=True, readonly=True, default='draft',
         track_visibility='onchange', copy=False,
         help=" * The 'Draft' status is used when a user is encoding a new and unconfirmed Invoice.\n"
-             " * The 'Pro-forma' when invoice is in Pro-forma status, invoice does not have an invoice number.\n"
+             " * The 'Pro-forma' status is used the invoice does not have an invoice number.\n"
              " * The 'Open' status is used when user create invoice, an invoice number is generated. Its in open status till user does not pay invoice.\n"
              " * The 'Paid' status is set automatically when the invoice is paid. Its related journal entries may or may not be reconciled.\n"
              " * The 'Cancelled' status is used when user cancel invoice.")

addons/account_voucher/account_voucher.py

@@ -78,10 +78,10 @@ class AccountVoucher(models.Model):
              ('proforma', 'Pro-forma'),
              ('posted', 'Posted')
             ], 'Status', readonly=True, track_visibility='onchange', copy=False, default='draft',
-            help=' * The \'Draft\' status is used when a user is encoding a new and unconfirmed Voucher. \
-                        \n* The \'Pro-forma\' when voucher is in Pro-forma status,voucher does not have an voucher number. \
-                        \n* The \'Posted\' status is used when user create voucher,a voucher number is generated and voucher entries are created in account \
-                        \n* The \'Cancelled\' status is used when user cancel voucher.')
+            help=" * The 'Draft' status is used when a user is encoding a new and unconfirmed Voucher.\n"
+                 " * The 'Pro-forma' status is used when the voucher does not have a voucher number.\n"
+                 " * The 'Posted' status is used when user create voucher,a voucher number is generated and voucher entries are created in account.\n"
+                 " * The 'Cancelled' status is used when user cancel voucher.")
     reference = fields.Char('Bill Reference', readonly=True, states={'draft': [('readonly', False)]},
                                  help="The partner reference of this document.", copy=False)
     amount = fields.Monetary(string='Total', store=True, readonly=True, compute='_compute_total')