bind: improve readability for float default values
bind: improve readability for float default values

To improve readability for default numeric types
represented as strings, use 0.0 for floating point types.
(No tests make use of this change so golden update
not necessary; not significant enough for new test/test mod.)
Fix spelling on error statement; this was the only
instance of that spelling error in the repository.

Change-Id: I373890725b33da11c6780ba93674d89541bf758c
Reviewed-on: https://go-review.googlesource.com/13645
Reviewed-by: Hyang-Ah Hana Kim <d7e82c3c07f92613bcbf9a1e88f6b96c13caa3b0@gmail.com>

b54898533/mobile,samanalysis/mobile,MaxCy330/mobile,cainiaocome/mobile,lonphy23t/mobile,lonphy23t/mobile,lonphy23t/mobile,MaxCy330/mobile,xing/gomobile,ichu501/mobile,tempbottle/mobile,cainiaocome/mobile,ichu501/mobile,MaxCy330/mobile,tempbottle/mobile,0x90sled/mobile,samanalysis/mobile,ppamorim/mobile,0x90sled/mobile,goldcaddy77/mobile,lonphy23t/mobile,cainiaocome/mobile,ichu501/mobile,swisspol/mobile,ppamorim/mobile,MaxCy330/mobile,samanalysis/mobile,xing/gomobile,b54898533/mobile,golang/mobile,samanalysis/mobile,tempbottle/mobile,0x90sled/mobile,goldcaddy77/mobile,lonphy23t/mobile,swisspol/mobile,b54898533/mobile,golang/mobile,xing/gomobile,xing/gomobile,swisspol/mobile,cainiaocome/mobile,tempbottle/mobile,ichu501/mobile,ppamorim/mobile,goldcaddy77/mobile,0x90sled/mobile,golang/mobile,cainiaocome/mobile,ppamorim/mobile,goldcaddy77/mobile,xing/gomobile,tempbottle/mobile,b54898533/mobile,swisspol/mobile,b54898533/mobile,golang/mobile,0x90sled/mobile,swisspol/mobile,ichu501/mobile,MaxCy330/mobile,goldcaddy77/mobile,samanalysis/mobile,ppamorim/mobile