(ociswrapper): separate ociswrapper logs from ocis logs (#6776)

tests/ociswrapper/log/log.go

@@ -0,0 +1,11 @@
+package log
+
+import "log"
+
+func Println(message string) {
+	log.Println("[ociswrapper]", message)
+}
+
+func Panic(err error) {
+	log.Panic("[ociswrapper] ", err.Error())
+}