Backport PR
#2663: Fix issue
#2660: parsing of help and version arguments...
Backport PR
#2663: Fix issue
#2660: parsing of help and version arguments
Help (-h --help --help-all) and version (--version -V) arguments that appear after a bare '--' argument are passed to the script IPython is running (like other arguments), instead of causing IPython itself to
write out help / version info.