nohup: document GCC bug number

* src/nohup.c: Add GCC bug number to comment.

diff --git a/src/nohup.c b/src/nohup.c
index 8ecaf69fb5f92c5697ab3a2215b6559df9961be6..c853638b44a2f78d8f2f9df8470015ac91cb2851 100644 (file)
--- a/src/nohup.c
+++ b/src/nohup.c
@@ -72,7 +72,8 @@ To save output to FILE, use '%s COMMAND > FILE'.\n"),
   exit (status);
 }
 
-/* GCC 13 gets confused by the dup2 calls.  */
+/* GCC 13 gets confused by the dup2 calls
+   <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109839>.  */
 #if 13 <= __GNUC__
 # pragma GCC diagnostic ignored "-Wanalyzer-fd-leak"
 #endif