Apply spelling fixes discovered by Codespell

Apply spelling fixes discovered by Codespell

* maintMakefile: Apply spelling fixes.
* src/file.c: Ditto.
* src/misc.c: Ditto.
* src/remake.c: Ditto.
* src/vmsjobs.c: Ditto.
* src/w32/pathstuff.c: Ditto.
* tests/test_driver.pl: Ditto.
* tests/run_make_tests.com: Ditto
* tests/scripts/features/implicit_search: Ditto
* tests/scripts/features/output-sync: Ditto
* tests/scripts/features/patternrules: Ditto
* tests/scripts/features/se_explicit: Ditto
* tests/scripts/features/statipattrules: Ditto
* tests/scripts/functions/foreach: Ditto
* tests/scripts/variables/MAKEFLAGS: Ditto