id: tweak comment

* src/id.c (main): Replace confusing use of "etc.".

diff --git a/src/id.c b/src/id.c
index 9fa93f8..8f7ce9e 100644 (file)
--- a/src/id.c
+++ b/src/id.c
@@ -201,9 +201,9 @@ main (int argc, char **argv)
     }
   else
     {
-      /* POSIX says getuid etc. cannot fail, but they can fail under
-         GNU/Hurd and a few other systems.  Test for failure by
-         checking errno.  */
+      /* POSIX says identification functions (getuid, getgid, and
+         others) cannot fail, but they can fail under GNU/Hurd and a
+         few other systems.  Test for failure by checking errno.  */
       uid_t NO_UID = -1;
       gid_t NO_GID = -1;