From 2949dcba295336ff67be90f556d076d18ae6eae1 Mon Sep 17 00:00:00 2001
From: Harald Hoyer <harald@redhat.com>
Date: Fri, 10 Jun 2016 14:31:52 +0200
Subject: [PATCH] base/dracut-lib.sh: add trim()

trim() to remove leading and trailing whitespace

(cherry picked from commit ac422d577c1de1e94620787380932b9ccbd7b10a)
---
 modules.d/99base/dracut-lib.sh | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/modules.d/99base/dracut-lib.sh b/modules.d/99base/dracut-lib.sh
index f3929e2cf..05cbe91d9 100755
--- a/modules.d/99base/dracut-lib.sh
+++ b/modules.d/99base/dracut-lib.sh
@@ -51,6 +51,13 @@ str_ends() {
     [ "${1%*"$2"}" != "$1" ]
 }
 
+trim() {
+    local var="$*"
+    var="${var#"${var%%[![:space:]]*}"}"   # remove leading whitespace characters
+    var="${var%"${var##*[![:space:]]}"}"   # remove trailing whitespace characters
+    echo -n "$var"
+}
+
 if [ -z "$DRACUT_SYSTEMD" ]; then
 
     warn() {
-- 
2.47.3