Switch to side-by-side view

--- a/tests/tar/tar.sh
+++ b/tests/tar/tar.sh
@@ -6,7 +6,7 @@
 initvariables $0
 
 (
-  recollq TARUNIQUETERM2
+  recollq -S mtime TARUNIQUETERM2
 
 )  2> $mystderr | egrep -v '^Recoll query: ' > $mystdout