text/template: clarify the default formatting used for values
text/template: clarify the default formatting used for values

Fixes #16105.

Change-Id: I94467f2adf861eb38f3119ad30d46a87456d5305
Reviewed-on: https://go-review.googlesource.com/24281
Reviewed-by: Andrew Gerrand <395a7d33bec8475c9b83b7d440f141bcbd994aa5@golang.org>

momchil-velikov/go,goodlang/good,goodlang/good,vsekhar/elastic-go,nawawi/go,christopher-henderson/Go,cloudflare/go,suncycheng/go,codestation/go,nawawi/go,akutz/go,goodlang/good,polyverse-security/go,momchil-velikov/go,polyverse-security/go,derekmarcotte/go,ImJasonH/go,Cofyc/go,CAFxX/go,josharian/go,ImJasonH/go,codestation/go,golang/go,ImJasonH/go,suncycheng/go,cloudflare/go,golang/go,CAFxX/go,Cofyc/go,goodlang/good,codestation/go,linux-on-ibm-z/go,momchil-velikov/go,josharian/go,suncycheng/go,ImJasonH/go,polyverse-security/go,vsekhar/elastic-go,akutz/go,nawawi/go,theif519/go,nawawi/go,josharian/go,linux-on-ibm-z/go,akutz/go,derekmarcotte/go,goodlang/good,theif519/go,linux-on-ibm-z/go,4ad/go,cloudflare/go,vsekhar/elastic-go,polyverse-security/go,josharian/go,cloudflare/go,nawawi/go,josharian/go,derekmarcotte/go,derekmarcotte/go,4ad/go,cloudflare/go,theif519/go,polyverse-security/go,4ad/go,theif519/go,Cofyc/go,ImJasonH/go,golang/go,akutz/go,josharian/go,linux-on-ibm-z/go,4ad/go,theif519/go,momchil-velikov/go,codestation/go,derekmarcotte/go,linux-on-ibm-z/go,momchil-velikov/go,4ad/go,vsekhar/elastic-go,cloudflare/go,theif519/go,nawawi/go,josharian/go,Cofyc/go,codestation/go,suncycheng/go,suncycheng/go,theif519/go,momchil-velikov/go,vsekhar/elastic-go,akutz/go,momchil-velikov/go,4ad/go,vsekhar/elastic-go,linux-on-ibm-z/go,golang/go,ImJasonH/go,CAFxX/go,momchil-velikov/go,akutz/go,ImJasonH/go,CAFxX/go,CAFxX/go,codestation/go,Cofyc/go,cloudflare/go,CAFxX/go,codestation/go,suncycheng/go,golang/go,linux-on-ibm-z/go,derekmarcotte/go,ImJasonH/go,CAFxX/go,golang/go,goodlang/good,vsekhar/elastic-go,theif519/go,derekmarcotte/go,suncycheng/go,suncycheng/go,Cofyc/go,polyverse-security/go,akutz/go,Cofyc/go,vsekhar/elastic-go,josharian/go,derekmarcotte/go,cloudflare/go,linux-on-ibm-z/go,4ad/go,codestation/go,polyverse-security/go,golang/go,goodlang/good,4ad/go,akutz/go,golang/go,polyverse-security/go,Cofyc/go,goodlang/good,nawawi/go,CAFxX/go,nawawi/go