Revert "tests.json accept alternate non-verbose stderr messages" (negative test)

This reverts commit 6d17daf.

Author: vszakats

tests.json

@@ -1974,10 +1974,7 @@
     "expected": {
       "stdout": "",
       "returncode": 9,
-      "stderr": [
-        "trurl error: Bad scheme [hello]\ntrurl error: Try trurl -h for help\n",
-        "trurl error: Error [hello]\ntrurl error: Try trurl -h for help\n"
-      ]
+      "stderr": "trurl error: Bad scheme [hello]\ntrurl error: Try trurl -h for help\n"
     }
   },
   {
@@ -2021,10 +2018,7 @@
     "expected": {
       "stdout": "https://example.org/\ngit://curl.se/\n",
       "returncode": 0,
-      "stderr": [
-        "trurl note: Bad scheme [foo]\ntrurl note: Bad scheme [hi]\ntrurl note: Bad scheme [hey]\n",
-        "trurl note: Error [foo]\ntrurl note: Error [hi]\ntrurl note: Error [hey]\n"
-      ]
+      "stderr": "trurl note: Bad scheme [foo]\ntrurl note: Bad scheme [hi]\ntrurl note: Bad scheme [hey]\n"
     }
   },
   {
@@ -2773,10 +2767,7 @@
       ]
     },
     "expected": {
-      "stderr": [
-        "trurl note: URL decode error, most likely because of rubbish in the input (query)\n",
-        "trurl note: Error (query)\n"
-      ],
+      "stderr": "trurl note: URL decode error, most likely because of rubbish in the input (query)\n",
       "returncode": 0,
       "stdout": "\n"
     }