fix: it didn't work correctly when the import path contains "."

[neglect-yp]

This PR fixes that called doesn't work correctly when an import path contains ..

An import path contains . when the target function is imported from an external package. So, the format for -called.funcs should be like github.com/gostaticanalysis/pkg.Func in this case. However, the following line splits a passed function name by . to get the package name, type name and function/method name:

called/called.go

Line 60 in 1d8d4f8

ss := strings.Split(strings.TrimSpace(fn), ".")

For example, github.com/gostaticanalysis/pkg.Func is split into ["github", "com/gostaticanalysis/pkg", "Func"] .

⚠️ BREAKING CHANGE

• () is required when specifying methods in -called.funcs
  • This is the same behavior as -printf.funcs for printf analyzer