fix(treewide): fix incorrect usage of std::move

`auto &&` and `T &&` are forwarding references and can be
either lvalue or rvalue references. Moving from universal references
is incorrect and should not be done.

Moving from integral or floating-point values is pointless and just
worsens debug performance.

src/libutil/executable-path.cc

@@ -35,7 +35,7 @@ ExecutablePath ExecutablePath::parse(const OsString & path)
         std::make_move_iterator(strings.begin()),
         std::make_move_iterator(strings.end()),
         std::back_inserter(ret),
-        [](auto && str) {
+        [](OsString && str) {
             return fs::path{
                 str.empty()
                     // "A zero-length prefix is a legacy feature that