(If
  (Com {[LIT_CHARS test]} {[DQ [ComSub (Com {[LIT_CHARS git]} {[LIT_CHARS config]} {[LIT_CHARS --bool]} {[LIT_CHARS core.filemode]})]]} {[LIT_DBRACKET_LIKE "="]} {[LIT_CHARS false]}  )
  (Com {[LIT_CHARS say]} {[SQ <LIT_CHARS "filemode disabled on the filesystem">]}  )
  (ElseTrue)
  (Com {[LIT_CHARS test_set_prereq]} {[LIT_CHARS FILEMODE]}  )
)