Duplicate Resource shouldn't warn for empty files

[Phil Tang]

In any Xcode project that uses nibs, there will occasionally be a nib that doesn't contain any strings. Localizing those nibs with Base Internationalization requires that we create a new .strings file for each language for each nib.

Thus, having a localized Xcode project with one nib with no strings will cause extraneous Duplicate Resource warnings.

[Ali Rantakari]

Thanks for reporting this. A fix will be included in the next release (0.9.8).

[Ali Rantakari]

Fixed in 0.9.8