Switch to side-by-side view

--- a/tests/indexedmimetypes/indexedmimetypes.sh
+++ b/tests/indexedmimetypes/indexedmimetypes.sh
@@ -55,3 +55,4 @@
 diff -w ${myname}.txt $mystdout > $mydiffs 2>&1
 
 checkresult
+rm -f index.pid