Bug 12792: C4::Reserves breaks my vim syntax color

Bug 12792: C4::Reserves breaks my vim syntax color

C4/Reserves.pm is unreadable with my vim configuration.
It appears I am the only one having this problem.
For an incomprehensible reason, a string constructs with
  qq/my string/;
completely breaks the syntax color for all the rest of the file (~2300l).
If I replace it with
  qq{my string};
all is fine!

Test plan:
launch
  git show HEAD
and verify this patch won't break anything.

Additionally, prove t/db_dependent/Reserves.t
This will trigger the three functions that were modified.
The prove currently fails on test 8, but the other succeeding
tests prove that this change is fine.

Signed-off-by: Mark Tompsett <mtompset@hotmail.com>
Signed-off-by: Katrin Fischer <Katrin.Fischer.83@web.de>
All tests pass on my installation.
No problems found.

Signed-off-by: Tomas Cohen Arazi <tomascohen@gmail.com>