typo fix

lib/ansible/inventory/manager.py

@@ -268,7 +268,7 @@ class InventoryManager(object):
                 if not parsed and failures:
                     # only if no plugin processed files should we show errors.
                     if C.INVENTORY_UNPARSED_IS_FAILED:
-                        msg = "Could not parse inventory source %s with availabel plugins:\n" % source
+                        msg = "Could not parse inventory source %s with available plugins:\n" % source
                         for fail in failures:
                             msg += 'Plugin %s failed: %s\n' % (fail['plugin'], to_native(fail['exc']))
                             if display.verbosity >= 3: