run-tests: unnecessary globs also count as warnings

When a glob is unnecessary, now there's a diff output and 'run-tests.py -i'
works for accepting the output.
On windows, some tests which have "passed" currently (with some info lines
printed) will now be reported as "warned". (I recommend to recognize "warned"
by buildbot before applying this patch.)

tests/run-tests.py

@@ -799,9 +799,8 b' def tsttest(test, wd, options, replaceme'
                     lout = el[:-1] + ' (glob)\n'
                     r = 0 # warn only
                 elif r == '-glob':
-                    log('\ninfo, unnecessary glob in %s (after line %d):'
-                        ' %s (glob)\n' % (test, pos, el[:-1]))
-                    r = True # pass on unnecessary glob
+                    lout = ''.join(el.rsplit(' (glob)', 1))
+                    r = 0 # warn only
                 else:
                     log('\ninfo, unknown linematch result: %r\n' % r)
                     r = False