Fixed Code Analysis error
Fixed Code Analysis error

projectkudu/SiteExtensionGallery,grenade/NuGetGallery_download-count-patch,KuduApps/NuGetGallery,skbkontur/NuGetGallery,JetBrains/ReSharperGallery,ScottShingler/NuGetGallery,JetBrains/ReSharperGallery,skbkontur/NuGetGallery,grenade/NuGetGallery_download-count-patch,KuduApps/NuGetGallery,JetBrains/ReSharperGallery,ScottShingler/NuGetGallery,ScottShingler/NuGetGallery,projectkudu/SiteExtensionGallery,mtian/SiteExtensionGallery,KuduApps/NuGetGallery,mtian/SiteExtensionGallery,projectkudu/SiteExtensionGallery,skbkontur/NuGetGallery,mtian/SiteExtensionGallery,KuduApps/NuGetGallery,grenade/NuGetGallery_download-count-patch,KuduApps/NuGetGallery