Only add customData field if provided.
Only add customData field if provided.

illfelder/libcloud,vongazman/libcloud,curoverse/libcloud,samuelchong/libcloud,mgogoulos/libcloud,watermelo/libcloud,Kami/libcloud,erjohnso/libcloud,apache/libcloud,illfelder/libcloud,mgogoulos/libcloud,andrewsomething/libcloud,andrewsomething/libcloud,curoverse/libcloud,ZuluPro/libcloud,mistio/libcloud,vongazman/libcloud,t-tran/libcloud,andrewsomething/libcloud,techhat/libcloud,ByteInternet/libcloud,SecurityCompass/libcloud,techhat/libcloud,samuelchong/libcloud,StackPointCloud/libcloud,Scalr/libcloud,watermelo/libcloud,ZuluPro/libcloud,t-tran/libcloud,illfelder/libcloud,Kami/libcloud,curoverse/libcloud,StackPointCloud/libcloud,pquentin/libcloud,StackPointCloud/libcloud,ByteInternet/libcloud,t-tran/libcloud,ByteInternet/libcloud,Scalr/libcloud,vongazman/libcloud,erjohnso/libcloud,Kami/libcloud,ZuluPro/libcloud,pquentin/libcloud,apache/libcloud,erjohnso/libcloud,mgogoulos/libcloud,SecurityCompass/libcloud,mistio/libcloud,SecurityCompass/libcloud,samuelchong/libcloud,techhat/libcloud,pquentin/libcloud,mistio/libcloud,Scalr/libcloud,apache/libcloud,watermelo/libcloud