Enclose files in quotation marks.

Signed-off-by: Kai Hudalla <[email protected]>

Author: Kai Hudalla

jenkins/Hono-Website-Pipeline.groovy

@@ -76,7 +76,7 @@ def build() {
         sh '''
             #!/bin/sh
             echo "scrubbing web site target directory..."
-            rm -rf $WORKSPACE/hono-web-site/!(copyrighted-logos)
+            rm -rf "$WORKSPACE/hono-web-site/!(copyrighted-logos)"
             cd $WORKSPACE/hono/site
             echo "building web site using Hugo `/shared/common/hugo/latest/hugo version`"
             /shared/common/hugo/latest/hugo -v -d $WORKSPACE/hono-web-site