comment formatting

Author: sophiapoirier

lib/Sema/CSGen.cpp

@@ -3084,10 +3084,10 @@ namespace {
 
       for (auto pack : expandedPacks) {
         Type packType;
-        // Skipping over pack elements because the relationship to its
-        // environment is now established during addPackElementEnvironment upon
-        // visiting its pack expansion and the Shape constraint added upon
-        // visiting the pack element.
+        /// Skipping over pack elements because the relationship to its
+        /// environment is now established during \c addPackElementEnvironment
+        /// upon visiting its pack expansion and the Shape constraint added
+        /// upon visiting the pack element.
         if (isExpr<PackElementExpr>(pack)) {
           continue;
         } else if (auto *elementType =