Bug 9654: add space between amount and currency symbol in basket group display

Bug 9654: add space between amount and currency symbol in basket group display

Changed:
    $total .= $bookseller->{invoiceprice} // 0;
Into:
    $total .= " " . ($bookseller->{invoiceprice} // 0);
in order to add a space between the total and currency in
the basket group.

Revised test plan:
 1) Log into staff client
 2) Acquisitions
 3) Click 'Search' in the 'Manage orders' box.
 4) Click '+ New basket' beside a vendor name.
 5) Type 'Bug 9654 Test 1' into basket name.
 6) Click 'Save'
 7) Click 'Add to basket'
 8) Click 'From an external source'
 9) Type 'Green Eggs and Ham' into the Title text box.
10) Click 'Search'
11) Click 'Order' on any one of the results.
12) Click 'Add Item' in the 'Item' box.
13) Select a Fund from the dropdown in the
     'Accounting details' box.
14) Click 'Save'
15) Click 'Close this basket'
16) Click 'Yes, close (Y)' without checking the attach to a
     basket group.
17) Click the 'Basket groups' tab.
18) Click '+ New basket group'
19) Notice the listing in 'Ungrouped baskets' lacks a space
     between the number and the currency. (e.g. Total: 0USD)
20) Apply patch (git bz apply 9654)
21) Refresh the page
22) Notice there is now a space. (e.g. Total: 0 USD)
23) Run the Koha QA Tool: (~/qa-test-tools/koha-qa.pl -v 2 -c 1)

Signed-off-by: Mark Tompsett <mtompset@hotmail.com>
Signed-off-by: Katrin Fischer <Katrin.Fischer.83@web.de>
Works as described, passes all tests.

Signed-off-by: Galen Charlton <gmc@esilibrary.com>