Fix bash-completion for Hugo builder flags such as --theme
Fix bash-completion for Hugo builder flags such as --theme

by placing their SetAnnotation() calls after their definitions.

See #1824 and 87ca0d0

ffrizzo/hugo,mdhender/hugo,coderzh/hugo,tubo028/hugo,anthonyfok/hugo,derekperkins/hugo,digitalcraftsman/hugo,derekperkins/hugo,vbatoufflet/hugo,soundrussian/hugo,fedelibre/hugo,tischda/hugo,fedelibre/hugo,anthonyfok/hugo,sprig/hugo,ifraixedes/hugo,mayah/hugo,jygastaud/hugo,mayah/hugo,soundrussian/hugo,bogem/hugo,mdhender/hugo,Zenithar/hugo,melo/hugo,ifraixedes/hugo,melo/hugo,digitalcraftsman/hugo,Zenithar/hugo,abourget/hugo,gohugoio/hugo,mdhender/hugo,mitchchn/hugo,vbatoufflet/hugo,bogem/hugo,fedelibre/hugo,MarkDBlackwell/hugo,jygastaud/hugo,ffrizzo/hugo,abourget/hugo,anthonyfok/hugo,gohugoio/hugo,sprig/hugo,tubo028/hugo,mitchchn/hugo,MarkDBlackwell/hugo,fedelibre/hugo,tischda/hugo,gohugoio/hugo,mdhender/hugo,coderzh/hugo