groups: don't test printf and putchar calls for failure

They are unnecessary, since we use gnulib's closeout module.
* src/group-list.c (print_group): Remove explicit error tests.
* src/groups.c (main): Likewise.
(write_error): Remove function.

1 files changed, 2 insertions, 14 deletions

diff --git a/src/group-list.c b/src/group-list.c
index e788f8e87..ace4908b1 100644
--- a/src/group-list.c
+++ b/src/group-list.c
@@ -109,21 +109,9 @@ print_group (gid_t gid, bool use_name)
     }
 
   if (grp == NULL)
-    {
-      if (printf ("%lu", (unsigned long int) gid) < 0)
-        {
-          error (0, errno, _("write error"));
-          ok = false;
-        }
-    }
+    printf ("%lu", (unsigned long int) gid);
   else
-    {
-      if (printf ("%s", grp->gr_name) < 0)
-        {
-          error (0, errno, _("write error"));
-          ok = false;
-        }
-    }
+    printf ("%s", grp->gr_name);
   return ok;
 }