format the split to multi-line string error when starts with a #{...}

[zw963]

Because following string is too long, i want to split it into two line.

# version 1

require "option_parser"

long_long_variable = 100
foo = ""

OptionParser.parse do |parser|
  parser.on(
    "--build-args=ARGS",
    "Specifies arguments for the build command, (default: #{long_long_variable}, will override --src flag)"
  ) do |args|
    foo = args
  end
end

So, i change to this:

require "option_parser"

long_long_variable = 100
foo = ""

OptionParser.parse do |parser|
  parser.on(
    "--build-args=ARGS",
    "Specifies arguments for the build command, (default: \
#{long_long_variable}, will override --src flag)"
  ) do |args|
    foo = args
  end
end

Above valid crystal code always be revert to version 1 unexpected by formatter.

this issue only happen when wrapped line start with a #{..}

Thanks