netapi32: return ERROR_CALL_NOT_IMPLEMENTED for the stub NetGetJoinInformation()

[Austin English]

-- 
-Austin
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diff --git a/dlls/netapi32/wksta.c b/dlls/netapi32/wksta.c
index 122a685..d68d320 100644
--- a/dlls/netapi32/wksta.c
+++ b/dlls/netapi32/wksta.c
@@ -589,7 +589,7 @@ NET_API_STATUS NET_API_FUNCTION NetGetJoinInformation(
     *Name = NULL;
     *type = NetSetupUnknownStatus;
 
-    return NERR_Success;
+    return ERROR_CALL_NOT_IMPLEMENTED;
 }
 
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