Merge pull request #4849 from ipfs/no-dev-null-pipe

No dev null pipe

test/sharness/t0010-basic-commands.sh

@@ -65,8 +65,10 @@ test_expect_success "All commands accept --help" '
   echo 0 > fail
   while read -r cmd
   do
-    $cmd --help </dev/null >/dev/null ||
+    $cmd --help >/dev/null ||
       { echo "$cmd doesnt accept --help"; echo 1 > fail; }
+    echo stuff | $cmd --help >/dev/null ||
+      { echo "$cmd doesnt accept --help when using stdin"; echo 1 > fail; }
   done <commands.txt
 
   if [ $(cat fail) = 1 ]; then