Merge branch 'hotfix/1.26.2'
do not detect Gemfile lines starting with ruby unless it's ruby directive
improved gemset copy help, fix #3143
preparing for mksh, update #3142
replace all '=~' with '== *' for compatibility with mksh, update #3142
copy __rvm_has_opt from scripts/rvm to scripts/base, update #3142
replace all export -a with typeset -ax, update #3142
handle mksh in scripts/initialize extglob if, update #3142
replace all file descriptors redirections with here docs with evaluation, update #3142
fix rvm export
get the zero definition out of loop in printenv_null
fix __rvm_unset_exports with the new mksh codding rules
remove all "typeset -ax" .... kind of obvious thing and breaks bash / mksh compatibility, update #3142
pass on parameters for __rvm_cli_get_and_execute_installer, fix #3146
1.26.3
Merge branch 'master' into hotfix/1.26.3
Merge branch 'hotfix/1.26.3' into stable