[exec.stopped.opt,exec.stopped.err] Fix indentation (#7897)

Author: Andreas-Krug

source/exec.tex

@@ -4459,11 +4459,11 @@
 auto&& [_, _, child] = sndr;
 using V = @\exposid{single-sender-value-type}@<Sndr, Env>;
 return let_stopped(
-    then(std::forward_like<Sndr>(child),
-         []<class... Ts>(Ts&&... ts) noexcept(is_nothrow_constructible_v<V, Ts...>) {
-           return optional<V>(in_place, std::forward<Ts>(ts)...);
-         }),
-    []() noexcept { return just(optional<V>()); });
+  then(std::forward_like<Sndr>(child),
+       []<class... Ts>(Ts&&... ts) noexcept(is_nothrow_constructible_v<V, Ts...>) {
+         return optional<V>(in_place, std::forward<Ts>(ts)...);
+       }),
+  []() noexcept { return just(optional<V>()); });
 \end{codeblock}
 
 \rSec3[exec.stopped.err]{\tcode{execution::stopped_as_error}}
@@ -4501,10 +4501,10 @@
 auto&& [_, err, child] = sndr;
 using E = decltype(auto(err));
 return let_stopped(
-    std::forward_like<Sndr>(child),
-    [err = std::forward_like<Sndr>(err)]() mutable noexcept(is_nothrow_move_constructible_v<E>) {
-      return just_error(std::move(err));
-    });
+  std::forward_like<Sndr>(child),
+  [err = std::forward_like<Sndr>(err)]() mutable noexcept(is_nothrow_move_constructible_v<E>) {
+    return just_error(std::move(err));
+  });
 \end{codeblock}
 
 \rSec2[exec.consumers]{Sender consumers}