Bug 23304: Reindent cataloguing/z3950_search.tt

Bug 23304: Reindent cataloguing/z3950_search.tt

This patch reindents cataloguing/z3950_search.tt to use four spaces and
to eliminate tabs, following coding guidelines. Trailing white space has
been removed, and some minor markup errors have been corrected for
validity.

To test, apply the patch and use your preferred method for checking the
differences between files while ignoring whitespace. I use diff with the
"-w" flag, but I'm not giving orders, you do you.

Go to Cataloging -> New from Z39.50/SRU. Test that the search form and
results look correct and work correctly.

Signed-off-by: Nadine Pierre <nadine.pierre@inLibro.com>
Signed-off-by: Nick Clemens <nick@bywatersolutions.com>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
(cherry picked from commit 377006ebe5a0e87a6f7517f0cb347a958c95a997)
Signed-off-by: Fridolin Somers <fridolin.somers@biblibre.com>