Polish up repository and other revisions

libc/math/__fesetround.S

@@ -1,4 +1,4 @@
-/*-*- mode:asm; indent-tabs-mode:t; tab-width:8; coding:utf-8               -*-│
+/*-*- mode:unix-assembly; indent-tabs-mode:t; tab-width:8; coding:utf-8     -*-│
 │vi: set et ft=asm ts=8 tw=8 fenc=utf-8                                     :vi│
 ╞══════════════════════════════════════════════════════════════════════════════╡
 │ Copyright 2020 Justine Alexandra Roberts Tunney                              │

libc/math/feraiseexcept.S

@@ -1,4 +1,4 @@
-/*-*- mode:asm; indent-tabs-mode:t; tab-width:8; coding:utf-8               -*-│
+/*-*- mode:unix-assembly; indent-tabs-mode:t; tab-width:8; coding:utf-8     -*-│
 │vi: set et ft=asm ts=8 tw=8 fenc=utf-8                                     :vi│
 ╞══════════════════════════════════════════════════════════════════════════════╡
 │ Copyright 2020 Justine Alexandra Roberts Tunney                              │

libc/math/fesetenv.S

@@ -1,4 +1,4 @@
-/*-*- mode:asm; indent-tabs-mode:t; tab-width:8; coding:utf-8               -*-│
+/*-*- mode:unix-assembly; indent-tabs-mode:t; tab-width:8; coding:utf-8     -*-│
 │vi: set et ft=asm ts=8 tw=8 fenc=utf-8                                     :vi│
 ╞══════════════════════════════════════════════════════════════════════════════╡
 │ Copyright 2020 Justine Alexandra Roberts Tunney                              │

libc/math/fetestexcept.S

@@ -1,4 +1,4 @@
-/*-*- mode:asm; indent-tabs-mode:t; tab-width:8; coding:utf-8               -*-│
+/*-*- mode:unix-assembly; indent-tabs-mode:t; tab-width:8; coding:utf-8     -*-│
 │vi: set et ft=asm ts=8 tw=8 fenc=utf-8                                     :vi│
 ╞══════════════════════════════════════════════════════════════════════════════╡
 │ Copyright 2020 Justine Alexandra Roberts Tunney                              │