hugofs: Fix GoDoc
hugofs: Fix GoDoc

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