$ find . -name \*.asd -exec grep -H read-file-form {} \;
./split-sequence-v2.0.1/split-sequence.asd:  :version (:read-file-form "version.sexp")
./fiveam-20220331-git/fiveam.asd:  :version (:read-file-form "version.sexp")
./bordeaux-threads-v0.8.8/bordeaux-threads.asd:  :version (:read-file-form "version.sexp")
./bordeaux-threads-v0.8.8/bordeaux-threads.asd:  :version (:read-file-form "version.sexp")
./parse-number-v1.7/parse-number.asd:  :version (:read-file-form "version.sexp")
./usocket-0.8.4/usocket-server.asd:    :version (:read-file-form "version.sexp")
./usocket-0.8.4/usocket-test.asd:    :version (:read-file-form "version.sexp")
./usocket-0.8.4/usocket.asd:    :version (:read-file-form "version.sexp")
./cl-git-20220707-git/cl-git.asd:  :version (:read-file-form "version.lisp-expr")
./cl-git-20220707-git/cl-git.asd:  :version (:read-file-form "version.lisp-expr")
./trivial-with-current-source-form-20211020-git/trivial-with-current-source-form.asd:  :version     (:read-file-form "version-string.sexp")

$ find . -name \*.asd -exec grep -H read-file-line {} \;
./fare-quasiquote-20200925-git/fare-quasiquote-extras.asd:  :version (:read-file-line "version.text")
./fare-quasiquote-20200925-git/fare-quasiquote-test.asd:  :version (:read-file-line "version.text")
./fare-quasiquote-20200925-git/fare-quasiquote-optima.asd:  :version (:read-file-line "version.text")
./fare-quasiquote-20200925-git/fare-quasiquote.asd:  :version (:read-file-line "version.text")
./fare-quasiquote-20200925-git/fare-quasiquote-readtable.asd:  :version (:read-file-line "version.text")
./clon-1.0b25/core/net.didierverna.clon.core.asd:  :version (:read-file-line #p"../make/version.make"
./clon-1.0b25/setup/net.didierverna.clon.setup.asd:  :version (:read-file-line #p"../make/version.make"
./clon-1.0b25/setup/net.didierverna.clon.setup.asd:  :version (:read-file-line #p"../make/version.make"
./clon-1.0b25/termio/net.didierverna.clon.termio.asd:  :version (:read-file-line #p"../make/version.make"
./clon-1.0b25/net.didierverna.clon.asd:  :version (:read-file-line #p"make/version.make"

$ find . -name \*.asd -exec grep -H read-file-string -A 1 {} \;
./djula-20220707-git/djula.asd:  #.(uiop:read-file-string
./djula-20220707-git/djula.asd-     (uiop:subpathname *load-pathname* "README.md"))
./trivia-20220707-git/trivia.asd:  ;; :long-description #.(read-file-string (subpathname *load-pathname* "README.org"))
./trivia-20220707-git/trivia.asd-  :version "0.1"
./cl-libyaml-20201220-git/cl-libyaml.asd:  #.(uiop:read-file-string
./cl-libyaml-20201220-git/cl-libyaml.asd-     (uiop:subpathname *load-pathname* "README.md"))
./cl-yaml-20201220-git/cl-yaml.asd:  #.(uiop:read-file-string
./cl-yaml-20201220-git/cl-yaml.asd-     (uiop:subpathname *load-pathname* "README.md"))
./eco-20190813-git/eco.asd:  #.(uiop:read-file-string
./eco-20190813-git/eco.asd-     (uiop:subpathname *load-pathname* "README.md"))
./ten-20220220-git/ten.asd:  #.(uiop:read-file-string
./ten-20220220-git/ten.asd-     (uiop:subpathname *load-pathname* "README.md"))