[PATCH] 4.0 fix for libstdc++/23871

[Paolo Carlini]

Janis Johnson wrote:

>OK for the 4.0-branch after it opens?
>  
>
Ok, but...

>	* include/bits/ostream.tcc (operator<<(long), operator<<(long long)):
>	Avoid using || with integers.
>  
>
please change this to "Adjust logic", or something of similar meaning: 
it's not only a type-correctness issue, it's first and foremost a logic 
issue, as the run tests demonstrate.

Thanks,
Paolo.

P.S. At your ease, you may add the compile test to mainline: as a 
general policy, in mainline we have a superset of the testcases in the 
release branches.