Fix memory leak in StringFeatures CID 26248, 26247, 26246, 26241, 26239, 26236, 26235, 26236, 26234
Fix memory leak in StringFeatures
CID 26248, 26247, 26246, 26241, 26239, 26236, 26235, 26236, 26234

Saurabh7/shogun,besser82/shogun,shogun-toolbox/shogun,geektoni/shogun,karlnapf/shogun,lisitsyn/shogun,lisitsyn/shogun,Saurabh7/shogun,sorig/shogun,besser82/shogun,shogun-toolbox/shogun,sorig/shogun,Saurabh7/shogun,besser82/shogun,lisitsyn/shogun,karlnapf/shogun,shogun-toolbox/shogun,karlnapf/shogun,Saurabh7/shogun,besser82/shogun,geektoni/shogun,besser82/shogun,karlnapf/shogun,shogun-toolbox/shogun,lisitsyn/shogun,lambday/shogun,Saurabh7/shogun,geektoni/shogun,sorig/shogun,geektoni/shogun,sorig/shogun,geektoni/shogun,Saurabh7/shogun,lambday/shogun,lambday/shogun,Saurabh7/shogun,karlnapf/shogun,sorig/shogun,lambday/shogun,lisitsyn/shogun,lisitsyn/shogun,besser82/shogun,sorig/shogun,Saurabh7/shogun,lambday/shogun,geektoni/shogun,shogun-toolbox/shogun,shogun-toolbox/shogun,Saurabh7/shogun,lambday/shogun,karlnapf/shogun