Normalized digest check before installing zip

Change-Id: I5a3e82f103e7a80800be7790f1c8dc33c76413da
(cherry picked from commit 646f4f0c66a918f12e12784b22e7dc9a89837c37)
diff --git a/twrpDigestDriver.cpp b/twrpDigestDriver.cpp
index 0f8eb63..af31417 100755
--- a/twrpDigestDriver.cpp
+++ b/twrpDigestDriver.cpp
@@ -70,8 +70,8 @@
 
 	if (!TWFunc::Path_Exists(digestfile)) {
 		delete digest;
-		gui_msg(Msg(msg::kError, "no_digest_found=No digest file found for '{1}'. Please unselect Enable Digest verification to restore.")(Filename));
-		return false;
+		gui_msg(Msg(msg::kWarning, "no_digest=Skipping Digest check: no Digest file found"));
+		return true;
 	}