openssh: add cosmetic patch to silence 'no such identity: xxxx' errors

packages/network/openssh/patches/openssh-silence-missing-identity-error.patch

@@ -0,0 +1,14 @@
+diff --git a/sshconnect2.c b/sshconnect2.c
+index d6af0b9..22c0aa6 100644
+--- a/sshconnect2.c
++++ b/sshconnect2.c
+@@ -1320,8 +1320,7 @@ load_identity_file(char *filename, int userprovided)
+ 	struct stat st;
+ 
+ 	if (stat(filename, &st) < 0) {
+-		(userprovided ? logit : debug3)("no such identity: %s: %s",
+-		    filename, strerror(errno));
++		debug3("no such identity: %s", filename);
+ 		return NULL;
+ 	}
+ 	private = key_load_private_type(KEY_UNSPEC, filename, "", NULL, &perm_ok);