fix: some test fix

drive.inc

@@ -37,7 +37,7 @@ function partition_list
         awk -F: \
         '{if (NR > 2)
             print $1
-        }')"
+        }'|xargs echo)"
 }
 
 function find_unused
@@ -46,7 +46,7 @@ function find_unused
     unused="$(parted -m "$drive" -- print|awk -F: \
         '{if (NR > 2 && $1 >= 2 && $6 == "root unused") {
             print $1
-         }}')|head -1"
+        }}'|head -1)"
 }
 
 function find_oldest