minor cleanup.

js/run_single_test.bash

@@ -58,7 +58,7 @@ while read -r test_case; do
     if [ "$test_mode" = "duster" ] || [ "$test_mode" = "" ]; then
         duster_output=$(xargs -a <(find "$test_group" -maxdepth 1 -mindepth 1 -type f -name 'main.dust'; find "$test_group" -maxdepth 1 -mindepth 1 -type f -name '*.dust' ! -name 'main.dust' | sort) "$DIR/../target/debug/duster-cli" < "$test_case")
     fi
-    
+
     if [ "$test_mode" = "dustjs" ]; then
         cat <<<"$dustjs_output"
     elif [ "$test_mode" = "duster" ]; then