The unamed register may be referenced as both @" and @@.
Remove the unused vimPlainRegister syntax group.
fixes: #17603.
closes: #17605
Signed-off-by: Doug Kearns <dougkearns@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
Continued strings are currently only matched after operators, in
parenthesised expressions and in function call argument lists.
closes: #14975
Signed-off-by: Doug Kearns <dougkearns@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>