[time.cal.wdlast.overview,time.hms.nonmembers] Fix indentation (#7562)

Author: Andreas-Krug

source/time.tex

@@ -5404,7 +5404,7 @@
   class weekday_last {
     chrono::weekday wd_;                // \expos
 
-    public:
+  public:
     constexpr explicit weekday_last(const chrono::weekday& wd) noexcept;
 
     constexpr chrono::weekday weekday() const noexcept;
@@ -8638,8 +8638,8 @@
 
 \begin{itemdecl}
 template<class charT, class traits, class Duration>
-basic_ostream<charT, traits>&
-operator<<(basic_ostream<charT, traits>& os, const hh_mm_ss<Duration>& hms);
+  basic_ostream<charT, traits>&
+    operator<<(basic_ostream<charT, traits>& os, const hh_mm_ss<Duration>& hms);
 \end{itemdecl}
 
 \begin{itemdescr}