[exec.scope.simple.counting.general] Fix comment alignment

Author: Andreas-Krug

source/exec.tex

@@ -8639,7 +8639,7 @@
     size_t @\exposid{count}@;                                       // \expos
     @\exposid{scope-state-type}@ @\exposid{state}@;                             // \expos
 
-    @\exposid{assoc-t}@ @\exposid{try-associate}@() noexcept;                      // \expos
+    @\exposid{assoc-t}@ @\exposid{try-associate}@() noexcept;                   // \expos
     void @\exposid{disassociate}@() noexcept;                       // \expos
     template<class State>
       bool @\exposid{start-join-sender}@(State& state) noexcept;    // \expos