Fix string comparison for .Truncated page variable
Fix string comparison for .Truncated page variable

Instead of `strings.TrimSpace()`, use `strings.Join(strings.Fields(s), " ")`
to collapse all whitespaces into single spaces, in order to match the
behaviour of helpers.TruncateWordsToWholeSentence(),
in order to detect non-truncated content correctly.

mdhender/hugo,tjyang/hugo,Zenithar/hugo,halostatue/hugo,bogem/hugo,kujohn/hugo,bogem/hugo,tjyang/hugo,tatsushid/hugo,badoet/hugo,melo/hugo,gohugoio/hugo,coderzh/hugo,tubo028/hugo,kujohn/hugo,tischda/hugo,mdhender/hugo,fedelibre/hugo,mitchchn/hugo,tatsushid/hugo,mayah/hugo,digitalcraftsman/hugo,coderzh/hugo,tubo028/hugo,gohugoio/hugo,anthonyfok/hugo,vbatoufflet/hugo,halostatue/hugo,badoet/hugo,sprig/hugo,anthonyfok/hugo,ryanclarke/hugo,mdhender/hugo,derekperkins/hugo,soundrussian/hugo,abourget/hugo,bramp/hugo,MarkDBlackwell/hugo,Zenithar/hugo,bramp/hugo,tischda/hugo,mdhender/hugo,melo/hugo,soundrussian/hugo,ifraixedes/hugo,abourget/hugo,derekperkins/hugo,fedelibre/hugo,digitalcraftsman/hugo,ryanclarke/hugo,fedelibre/hugo,ffrizzo/hugo,mitchchn/hugo,gohugoio/hugo,fhergomez/hugo,MarkDBlackwell/hugo,anthonyfok/hugo,jygastaud/hugo,vbatoufflet/hugo,jygastaud/hugo,ffrizzo/hugo,ifraixedes/hugo,sprig/hugo,fhergomez/hugo,fedelibre/hugo,mayah/hugo