Generalize delimiter in archiver response file

Generalize delimiter in archiver response file

While [`lib.exe` of MSVC][1] expects newline-delimited response file
lines, [`tlib.exe` of C++Builder][2] expects lines to end with `&` in
order to read the next line.

[1]: https://docs.microsoft.com/cpp/build/reference/running-lib?view=msvc-160#lib-command-files
[2]: http://docwiki.embarcadero.com/RADStudio/Sydney/en/TLIB.EXE,_the_Library_Manager#Response_Files

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Dmitry Belyavskiy <beldmit@gmail.com>
(Merged from https://github.com/openssl/openssl/pull/13540)