tests: avoid split/filter test failure on very low-mem system

* tests/split/filter: Use xz -1 when compressing, to minimize
memory usage.  Otherwise, xz could fail due to insufficient
virtual memory on a system with very little free memory.

diff --git a/tests/split/filter b/tests/split/filter
index dbcac5f71f96480878f109cc30761e50964ff35c..7a55818e71ac8a657014408256c1f3c84593473f 100755 (executable)
--- a/tests/split/filter
+++ b/tests/split/filter
@@ -29,7 +29,7 @@ for total_n_lines in 5 3000 20000; do
     # and would provide little added benefit.
     case $i:$total_n_lines in 2:5);; *) continue;; esac
 
-    split -l$i --filter='xz > $FILE.xz' in out- || fail=1
+    split -l$i --filter='xz -1 > $FILE.xz' in out- || fail=1
     xz -dc out-* > out || fail=1
     compare in out || fail=1
     rm -f out*