[CentOS] /bin/false as a login shell

I see that /bin/false is not a valid shell by default on CentOS. It is 
f.i. on Suse. /bin/false is present, though. Is there a security reason 
for this? man says that nologin gives feedback that the account is not 
available while false just exits false. Anything against just adding 
/bin/false to /etc/shells?

Kai

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Kai Schätzl, Berlin, Germany
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