Lower verbosity of tests excluded due to bugs.

runtests.py

@@ -1517,7 +1517,8 @@ class VersionDependencyExcluder:
 
 class FileListExcluder:
 
-    def __init__(self, list_file):
+    def __init__(self, list_file, verbose=False):
+        self.verbose = verbose
         self.excludes = {}
         self._list_file = list_file
         f = open(list_file)
@@ -1532,7 +1533,7 @@ class FileListExcluder:
     def __call__(self, testname, tags=None):
         exclude = (testname in self.excludes
                    or testname.split('.')[-1] in self.excludes)
-        if exclude:
+        if exclude and self.verbose:
             print("Excluding %s because it's listed in %s"
                   % (testname, self._list_file))
         return exclude
@@ -1938,6 +1939,7 @@ def runtests(options, cmd_args, coverage=None):
                 test_bugs = True
 
     selectors = [ string_selector(r) for r in cmd_args ]
+    verbose_excludes = selectors or options.verbosity >= 2
     if not selectors:
         selectors = [ lambda x, tags=None: True ]
 
@@ -1969,7 +1971,7 @@ def runtests(options, cmd_args, coverage=None):
         exclude_selectors.append(ShardExcludeSelector(options.shard_num, options.shard_count))
 
     if not test_bugs:
-        exclude_selectors += [ FileListExcluder(os.path.join(ROOTDIR, "bugs.txt")) ]
+        exclude_selectors += [ FileListExcluder(os.path.join(ROOTDIR, "bugs.txt"), verbose=verbose_excludes) ]
 
     if sys.platform in ['win32', 'cygwin'] and sys.version_info < (2,6):
         exclude_selectors += [ lambda x: x == "run.specialfloat" ]