message: Fix `CodeMemory` doc comments.
diff: @@ -140,12 +140,12 @@ impl CodeMemory {
  unimplemented!("CodeMemory::new");
  }
  - /// Makes this code memory executable.
  + /// Makes this code memory executable and not writable.
  pub fn make_executable(&self) {
  unimplemented!("CodeMemory::make_executable");
  }
  - /// Makes this code memory writable.
  + /// Makes this code memory writable and not executable.
  pub fn make_writable(&self) {
  unimplemented!("CodeMemory::make_writable");
  }
  @@ -185,14 +185,14 @@ impl CodeMemory {
  }
  }
  - /// Makes this code memory executable.
  + /// Makes this code memory executable and not writable.
  pub fn make_executable(&self) {
  if unsafe { mprotect(self.ptr as _, self.size, PROT_READ | PROT_EXEC) } != 0 {
  panic!("cannot set code memory to executable");
  }
  }
  - /// Makes this code memory writable.
  + /// Makes this code memory writable and not executable.
  pub fn make_writable(&self) {
  if unsafe { mprotect(self.ptr as _, self.size, PROT_READ | PROT_WRITE) } != 0 {
  panic!("cannot set code memory to writable");
  