• VSCode Version: 1.4.0
• OS Version: Win10 1511

Steps to Reproduce:

1. using VSCode, open a directory stored in an NTFS volume, which has files named FooContainer.cs
2. press CTRL+SHIFT+F to invoke Find in Files
3. press "..." to show 'files to include'
4. enter "*_/_container.cs"
5. search for something that is known to exist in the file.
6. results: nothing is found
7. replace 'files to include' with "*_/_Container.cs" (only change is the upper case C instead of lower case)
8. search again, this time results are found as expected.

Since Windows NTFS is not a case-sensitive file system, the expected results is that I can search in files using any case in the 'files to include'/'files to exclude'.