docs: make the documentation for --etag-save
match the program behaviour
#7429
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When using curl with the option
--etag-save
I expected it to save the ETag without its surrounding quotes, as stated by the documentation in the repository and by the generated man pages.My first endeavour was to fix the program, but while investigating the history of the relevant parts, I discovered that curl once saved the ETag without the quotes.
This was undone by Daniel Stenberg (@bagder) in commit
98c94596f5928840177b6bd3c7b0f0dd03a431af
, therefore I decided that in this case the documentation should be adjusted to match the behaviour of curl.The changed save behaviour also made parts of the
--etag-compare
documentation wrong or superfluous, so I adjusted those accordingly.