Redefine the unicode output condition for nanoserver for "more" function #4074
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Fix issue #2909
I haven't included a test case with this fix because
Thus, one time manual verification might be enough.
Summary of the issue:
Under non-english OS, if user start ps core under comandline and type "help ", the output will be one character per line
Root cause of the issue:
Only Nano needs to use Unicode, but Windows and Linux need the default encoding. The way we judge if the current os is Nano server has been outdated.
Fix:
Update the condition we use to judge nano server.