The threee tags `<name>`, `</name>` and `<command>` were frequently used
with a leading space that this removes. The reason this habbit is so
widespread in testcases is probably that they have been copy and pasted.
Hence, fixing them all now might curb this practice from now on.
Closes#12028
This is a bit shorter and a lot safer.
Substrings of unescaped characters are added by a single call to reduce
overhead.
Extend test 1465 to handle more kind of escapes.
Closes#9653
C string hexadecimal-escaped characters may have more than 2 digits.
This results in a wrong C compiler interpretation of a 2-digit escaped
character when followed by an hex digit character.
The solution retained here is to represent such characters as 3-digit
octal escapes.
Adjust and extend test 1465 for this case.
Closes#9643
The command line tool also independently sets --ftp-skip-pasv-ip by
default.
Ten test cases updated to adapt the modified --libcurl output.
Bug: https://curl.se/docs/CVE-2020-8284.html
CVE-2020-8284
Reported-by: Varnavas Papaioannou
