Update mongo initdb behavior (minor bugfixes)

See:

- docker-library/mongo#151
- docker-library/mongo#152
- docker-library/mongo#153

library/mongo

@@ -5,7 +5,7 @@ Maintainers: Tianon Gravi <[email protected]> (@tianon),
 GitRepo: https://github.com/docker-library/mongo.git
 
 Tags: 3.0.14, 3.0
-GitCommit: 27f2722bb2ebd26354321adc8c3f19f7958529e1
+GitCommit: eb6b52d7f8493566c349e55582b4f35aacd038cd
 Directory: 3.0
 
 Tags: 3.0.14-windowsservercore, 3.0-windowsservercore
@@ -14,7 +14,7 @@ Directory: 3.0/windows/windowsservercore
 Constraints: windowsservercore
 
 Tags: 3.2.12, 3.2
-GitCommit: 27f2722bb2ebd26354321adc8c3f19f7958529e1
+GitCommit: eb6b52d7f8493566c349e55582b4f35aacd038cd
 Directory: 3.2
 
 Tags: 3.2.12-windowsservercore, 3.2-windowsservercore
@@ -23,7 +23,7 @@ Directory: 3.2/windows/windowsservercore
 Constraints: windowsservercore
 
 Tags: 3.4.2, 3.4, 3, latest
-GitCommit: 27f2722bb2ebd26354321adc8c3f19f7958529e1
+GitCommit: eb6b52d7f8493566c349e55582b4f35aacd038cd
 Directory: 3.4
 
 Tags: 3.4.2-windowsservercore, 3.4-windowsservercore, 3-windowsservercore, windowsservercore