tests: properly quote arguments to printf

v2: incorporate remarks of Lukas

Signed-off-by: Ferry Huberts <ferry.huberts@pelagic.nl>

tests/setup.sh

@@ -22,7 +22,7 @@ mkrepo() {
 	count=$2
 	dir=$PWD
 	test -d "$name" && return
-	printf "Creating testrepo %s\n" $name
+	printf "Creating testrepo %s\n" "$name"
 	mkdir -p "$name"
 	cd "$name"
 	git init