prism-auto: partially revert 05e7aed

The occurence of a line with 'Error:' does not necessarily imply a
failed test result, e.g., for test cases that test against the error
messages.

So we revert the previous change related to the printing of 'Error' lines
and tweak the handling in verbose-test mode some more.

prism/etc/scripts/prism-auto

@@ -557,12 +557,14 @@ def runPrism(args, dir=""):
                 else:
                     # We don't print it, but we count it
                     countTestResult(line)
-            elif re.match('Error:', line):
-                printTestResult(line)
             elif options.verboseTest:
                 # in verbose mode, also print the non-matching lines
                 # rstrip to remove newline before printing
-                print(line.rstrip())
+                if re.match('Error:', line):
+                    # highlight lines with error messages
+                    printColoured('FAILURE', line.rstrip())
+                else:
+                    print(line.rstrip())
                 sys.stdout.flush()
     if options.test and exitCode != 0:
         # failure
@@ -570,8 +572,15 @@ def runPrism(args, dir=""):
             # we don't want to cleanup the log (if it was a temporary file)
             # so that the user can inspect it
             cleanupLogFile = False
+            for line in open(logFile, 'r').readlines():
+                if re.match('Error:', line):
+                    printTestResult(line)
             print("To see log file, run:")
             print("edit " + logFile)
+        else:
+            # in verbose test mode, print extra info and increment failure counter
+            printColoured('FAILURE', "\n[Exit code: " + str(exitCode) + "]")
+            incrementTestStat('FAILURE')
         if not options.testAll:
             closeDown(1)
     if cleanupLogFile: