tpl: Add missing substr test variants
tpl: Add missing substr test variants

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