certstore: rename argument in constructor

Change-Id: I3f0ff94a42083f89f188c9ff3da5b1e447ee3c2b
diff --git a/include/certstore.h b/include/certstore.h
index 097a543..f92c8a1 100644
--- a/include/certstore.h
+++ b/include/certstore.h
@@ -49,7 +49,7 @@
 class CertificateStore
 {
 public:
-    explicit CertificateStore(const std::string& accountId, std::shared_ptr<Logger> logger);
+    explicit CertificateStore(const std::string& path, std::shared_ptr<Logger> logger);
 
     std::vector<std::string> getPinnedCertificates() const;
     /**