Rename parameter for clarity.

This one should have been committed before r21713
because that commit uses the changed parameter.
BP

git-svn-id: svn+ssh://svn.gnucash.org/repo/gnucash/trunk@21714 57a11ea4-9604-0410-9ed3-97b8803252fd

src/business/business-gnome/dialog-invoice.c

@@ -656,7 +656,7 @@ gnc_invoice_window_postCB (GtkWidget *unused_widget, gpointer data)
     const char *text;
     EntryList *entries, *entries_iter;
     GncEntry* entry;
-    gboolean reverse;
+    gboolean is_cust_doc;
     gboolean show_dialog = TRUE;
     gboolean post_ok = TRUE;
 
@@ -676,7 +676,7 @@ gnc_invoice_window_postCB (GtkWidget *unused_widget, gpointer data)
         return;
     }
 
-    reverse = (gncInvoiceGetOwnerType (invoice) == GNC_OWNER_CUSTOMER);
+    is_cust_doc = (gncInvoiceGetOwnerType (invoice) == GNC_OWNER_CUSTOMER);
 
 //    /* Make sure that the invoice/credit note has a positive balance */
 //    if (gnc_numeric_negative_p(gncInvoiceGetTotal(invoice)))
@@ -768,7 +768,7 @@ gnc_invoice_window_postCB (GtkWidget *unused_widget, gpointer data)
         gnc_commodity *account_currency;
 
         entry = (GncEntry*)entries_iter->data;
-        this_acc = (reverse ? gncEntryGetInvAccount (entry) :
+        this_acc = (is_cust_doc ? gncEntryGetInvAccount (entry) :
                     gncEntryGetBillAccount (entry));
         account_currency = xaccAccountGetCommodity (this_acc);