Bug 6614: Remove newlines from order notes when exporting to CSV

Bug 6614: Remove newlines from order notes when exporting to CSV

Newline is not a valid character to Text::CSV's combine() subroutine.  If an order
contained a note with a newline in it, that line would come out as a blank entry in
the exported CSV.  This patch strips such characters, globally.

Signed-off-by: Nicole C. Engard <nengard@bywatersolutions.com>
Signed-off-by: Chris Cormack <chrisc@catalyst.net.nz>
(cherry picked from commit 68f99cdf980222dcb557667925bd6024640cda2a)

Signed-off-by: Chris Nighswonger <chris.nighswonger@gmail.com>