Cleanup formatting of setup messages

Author: mdboom

setup.py

@@ -133,7 +133,11 @@
                     message = 'yes [%s]' % result
                     print_status(package.name, message)
             except setupext.CheckFailed as e:
-                print_status(package.name, 'no  [%s]' % str(e))
+                msg = str(e).strip()
+                if len(msg):
+                    print_status(package.name, 'no  [%s]' % msg)
+                else:
+                    print_status(package.name, 'no')
                 if not package.optional:
                     required_failed.append(package)
             else:

setupext.py

@@ -413,7 +413,7 @@ def _check_for_pkg_config(self, package, include_file, min_version=None,
 
             if version is None:
                 raise CheckFailed(
-                    "pkg-config information for '%s' could not be found" %
+                    "pkg-config information for '%s' could not be found." %
                     package)
 
         if min_version == 'PATCH':