diff --git a/ci/release/template/scripts/lib.sh b/ci/release/template/scripts/lib.sh
index 759a95202..85162a382 100644
--- a/ci/release/template/scripts/lib.sh
+++ b/ci/release/template/scripts/lib.sh
@@ -416,7 +416,7 @@ manpath() {
 
 is_writable_dir() {
   # If it can be created, we can use it.
-  sh_c "mkdir -p '$1' 2>/dev/null"
+  hide mkdir -p "$1"
 }
 
 ensure_prefix() {
diff --git a/ci/sub b/ci/sub
index 27f99d772..92c31dd6d 160000
--- a/ci/sub
+++ b/ci/sub
@@ -1 +1 @@
-Subproject commit 27f99d77228679f2adf66e8543b8b242399fd5f2
+Subproject commit 92c31dd6df2b1d96787b5c3c2a8c470f4ec187cb
diff --git a/install.sh b/install.sh
index a2788292a..906b83fe9 100755
--- a/install.sh
+++ b/install.sh
@@ -552,7 +552,7 @@ manpath() {
 
 is_writable_dir() {
   # If it can be created, we can use it.
-  sh_c "mkdir -p '$1' 2>/dev/null"
+  hide mkdir -p "$1"
 }
 
 ensure_prefix() {