ectest: fix parentheses warnings
ectest: fix parentheses warnings

xiph/daala,luctrudeau/daala,xiph/daala,KyleSiefring/daala,ycho/daala,luctrudeau/daala,HeadhunterXamd/daala,jmvalin/daala,HeadhunterXamd/daala,xiphmont/daala,HeadhunterXamd/daala,luctrudeau/daala,xiph/daala,luctrudeau/daala,xiph/daala,KyleSiefring/daala,HeadhunterXamd/daala,jmvalin/daala,xiphmont/daala,HeadhunterXamd/daala,jmvalin/daala,KyleSiefring/daala,KyleSiefring/daala,ycho/daala,ycho/daala,jmvalin/daala,luctrudeau/daala,ycho/daala,xiph/daala,ycho/daala,xiphmont/daala,KyleSiefring/daala,jmvalin/daala,xiphmont/daala,xiphmont/daala