RFR of 8074819: Resolve disabled warnings for libzip

[Xueming Shen]

it appears the "warning-switch-off" change might trigger a timzezone.c 
warning-failure on mac ... will take another round ...

On 6/19/15 5:11 AM, Alan Bateman wrote:
> On 18/06/2015 21:40, Xueming Shen wrote:
>> Hi,
>>
>> Please help review the change to resolve the disabled "parentheses" 
>> warnings for libzip
>>
>> issue: https://bugs.openjdk.java.net/browse/JDK-8074819
>> webrev: http://cr.openjdk.java.net/~sherman/8074819
> Looks okay to me, although I have to admit that parentheses warning is 
> new to me (I had to look it up).
>
> -Alan.