chore(testdata): updates test expectations to match new error messaging

testdata/get__secret__err__with__binary_run.ct

@@ -1,16 +1,4 @@
 $ fecho cmd echo hello world
 $ pda set a --secret < cmd
 $ pda get a --include-binary --run --> FAIL
-Error: "a" is marked secret; re-run with --secret to display it
-Usage:
-  pda get KEY[@DB] [flags]
-
-Aliases:
-  get, g
-
-Flags:
-  -h, --help             help for get
-  -b, --include-binary   include binary data in text output
-      --no-template      directly output template syntax
-  -c, --run              execute the result as a shell command
-      --secret           display values marked as secret
+Error: cannot get 'a': marked as secret, run with --secret