fix

Author: marcoieni

src/ci/scripts/free-disk-space.sh

@@ -38,7 +38,7 @@ printSavedSpace() {
 
 # macro to print output of df with caption
 printDF() {
-    local caption=$1
+    local caption=${1}
 
     printSeparationLine "="
     echo "${caption}"
@@ -62,8 +62,8 @@ removeDir() {
 }
 
 execAndMeasureSpaceChange() {
-    local operation=$1  # Function to execute
-    local title=$2
+    local operation=${1}  # Function to execute
+    local title=${2}
 
     local before=$(getAvailableSpace)
     $operation