Merge "minor doc improvement for tombstone fd code" into main am: 1076e7f7a3 am: a1e7728329

Original change: https://android-review.googlesource.com/c/platform/system/core/+/2976171

Change-Id: Ie328b54471ff77b6d181f91cb029cee0c5e9255a
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
diff --git a/debuggerd/tombstoned/tombstoned.cpp b/debuggerd/tombstoned/tombstoned.cpp
index cf7904f..e79035f 100644
--- a/debuggerd/tombstoned/tombstoned.cpp
+++ b/debuggerd/tombstoned/tombstoned.cpp
@@ -417,6 +417,7 @@
     return false;
   }
 
+  // This fd is created inside of dirfd in CrashQueue::create_temporary_file.
   std::string fd_path = StringPrintf("/proc/self/fd/%d", fd.get());
   rc = linkat(AT_FDCWD, fd_path.c_str(), dirfd.get(), path.c_str(), AT_SYMLINK_FOLLOW);
   if (rc != 0) {