gnu: Add 'file-name' where appropriate.

gnu: Add 'file-name' where appropriate.

* gnu/packages/admin.scm (detox, neofetch),
gnu/packages/algebra.scm (python-fpylll),
gnu/packages/bioinformatics.scm (tbsp, genrich),
gnu/packages/crypto.scm (hpenc),
gnu/packages/digest.scm (xxhash),
gnu/packages/emacs-xyz.scm (emacs-tiny, emacs-ergoemacs-mode,
emacs-make-it-so, emacs-poet-theme, emacs-deft, emacs-scribble-mode,
emacs-helm-mu, emacs-unidecode, emacs-diff-hl, emacs-helm-exwm,
emacs-gif-screencast, emacs-exec-path-from-shell),
gnu/packages/engineering.scm (gpx),
gnu/packages/freedesktop.scm (waylandpp),
gnu/packages/golang.scm (go-github-com-sirupsen-logrus,
go-github-com-shirou-gopsutil),
gnu/packages/guile-xyz.scm (guile-studio, guile-picture-language,
jupyter-guile-kernel),
gnu/packages/image-viewers.scm (qview),
gnu/packages/java-maths.scm (java-jblas),
gnu/packages/llvm.scm (libclc),
gnu/packages/logging.scm (spdlog),
gnu/packages/ocaml.scm (ocaml-cstruct, ocaml-zarith),
gnu/packages/terminals.scm (libtsm),
gnu/packages/tigervnc.scm (tigervnc-client),
gnu/packages/xdisorg.scm (xcalib, xbanish) [source]: Add file-name.