Address some compilation warnings.

Address some compilation warnings.

* lisp/face-remap.el (text-scale-adjust):
* lisp/menu-bar.el (popup-menu-normalize-position):
* lisp/emacs-lisp/byte-opt.el (byte-compile-inline-expand):
* lisp/emacs-lisp/bytecomp.el (byte-compile-arglist-warn):
* lisp/emacs-lisp/generator.el (cps--transform-1):
* lisp/emacs-lisp/macroexp.el (macroexp--expand-all):
* lisp/obsolete/vc-arch.el (vc-arch-mode-line-string):
* lisp/progmodes/octave.el (octave-goto-function-definition)
(octave-find-definition-default-filename):
Replace 't' with '_' in pcase.