debuginfod.cxx: Restore comment

Restore comment mistakenly removed in commit 75fb8c0152.

Signed-off-by: Aaron Merey <amerey@redhat.com>

diff --git a/debuginfod/debuginfod.cxx b/debuginfod/debuginfod.cxx
index 6b21f46f70ea2dd0d0662492817732d097cdd023..b9f911057d288247692991d202457e6f28a6a6b3 100644 (file)
--- a/debuginfod/debuginfod.cxx
+++ b/debuginfod/debuginfod.cxx
@@ -2996,6 +2996,8 @@ dwarf_extract_source_paths (Elf *elf, set<string>& debug_sourcefiles)
 
       if (comp_dir[0] == '\0' && cuname[0] != '/')
         {
+         // This is a common symptom for dwz-compressed debug files,
+         // where the altdebug file cannot be resolved.
           if (verbose > 3)
             obatched(clog) << "skipping cu=" << cuname << " due to empty comp_dir" << endl;
           continue;