Prefer setq-local in several progmodes

Prefer setq-local in several progmodes

* lisp/progmodes/executable.el (executable-interpret):
* lisp/progmodes/f90.el (f90-mode):
* lisp/progmodes/flymake-cc.el (flymake-cc--make-diagnostics):
* lisp/progmodes/fortran.el (fortran-mode):
* lisp/progmodes/gud.el (gud-gdb, sdb, dbx, xdb, perldb, pdb)
(jdb, gud-mode, gud-common-init, gdb-script-mode)
(gud-tooltip-activate-mouse-motions):
* lisp/progmodes/hideshow.el (hs-minor-mode):
* lisp/progmodes/icon.el (icon-mode):
* lisp/progmodes/ld-script.el (ld-script-mode):
* lisp/progmodes/mixal-mode.el (mixal-mode):
* lisp/progmodes/modula2.el (m2-mode):
* lisp/progmodes/simula.el (simula-mode):
* lisp/progmodes/subword.el (subword-setup-buffer):
* lisp/progmodes/which-func.el (which-function):  Prefer setq-local.