[comparisons] Fix indentation (#9029)

Author: Andreas-Krug

source/utilities.tex

@@ -12926,7 +12926,7 @@
 \indexlibrarymember{operator()}{equal_to<>}%
 \begin{itemdecl}
 template<class T, class U> constexpr auto operator()(T&& t, U&& u) const
-    -> decltype(std::forward<T>(t) == std::forward<U>(u));
+  -> decltype(std::forward<T>(t) == std::forward<U>(u));
 \end{itemdecl}
 
 \begin{itemdescr}
@@ -12968,7 +12968,7 @@
 \indexlibrarymember{operator()}{not_equal_to<>}%
 \begin{itemdecl}
 template<class T, class U> constexpr auto operator()(T&& t, U&& u) const
-    -> decltype(std::forward<T>(t) != std::forward<U>(u));
+  -> decltype(std::forward<T>(t) != std::forward<U>(u));
 \end{itemdecl}
 
 \begin{itemdescr}
@@ -13010,7 +13010,7 @@
 \indexlibrarymember{operator()}{greater<>}%
 \begin{itemdecl}
 template<class T, class U> constexpr auto operator()(T&& t, U&& u) const
-    -> decltype(std::forward<T>(t) > std::forward<U>(u));
+  -> decltype(std::forward<T>(t) > std::forward<U>(u));
 \end{itemdecl}
 
 \begin{itemdescr}
@@ -13052,7 +13052,7 @@
 \indexlibrarymember{operator()}{less<>}%
 \begin{itemdecl}
 template<class T, class U> constexpr auto operator()(T&& t, U&& u) const
-    -> decltype(std::forward<T>(t) < std::forward<U>(u));
+  -> decltype(std::forward<T>(t) < std::forward<U>(u));
 \end{itemdecl}
 
 \begin{itemdescr}
@@ -13094,7 +13094,7 @@
 \indexlibrarymember{operator()}{greater_equal<>}%
 \begin{itemdecl}
 template<class T, class U> constexpr auto operator()(T&& t, U&& u) const
-    -> decltype(std::forward<T>(t) >= std::forward<U>(u));
+  -> decltype(std::forward<T>(t) >= std::forward<U>(u));
 \end{itemdecl}
 
 \begin{itemdescr}
@@ -13136,7 +13136,7 @@
 \indexlibrarymember{operator()}{less_equal<>}%
 \begin{itemdecl}
 template<class T, class U> constexpr auto operator()(T&& t, U&& u) const
-    -> decltype(std::forward<T>(t) <= std::forward<U>(u));
+  -> decltype(std::forward<T>(t) <= std::forward<U>(u));
 \end{itemdecl}
 
 \begin{itemdescr}