Limit heredoc matches to assignment statements. Matching these at the
top level is very slow.
closes: #17473
Signed-off-by: Doug Kearns <dougkearns@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
The end marker is not required to match the indent of :let when "trim"
is specified, it may also appear without leading whitespace as normal.
closes: #15564
Signed-off-by: Doug Kearns <dougkearns@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>