YamlFilter doesn't handle the folded style literals well, folding lines when it shouldn't

[Kuro Kurosaka (BH Lab)]

YamlFilter doesn't handle folded-style (">") literals well.

Below is how tikal extracts the Yaml example given in Yaml 1.2 spec.

‌

$ cat ex_8.13.yml
>
 folded
 line

 next
 line
    * bullet

    * list
    * line

 last
 line

# Comment
$ ./tikal.sh -x ex_8.13.yml...
$ cat ex_8.13.yml.xlf
 ...
 <source xml:lang="en">folded line<x id="1"/>next line * bullet<x id="2"/>* list * line<x id="3"/>last line</source>
 ...

‌

"\n    * bullet" must be retained as one separate line but gets folded into the previous line. Same for "    *list" and "    * line".

Note: Examples 8.10, 8.11, 8.12 and 8.13 are the same.