simplification

Упрощение вызова метода для преобразования ФИО

First

ok  	github.com/pallid/fio	0.209s	coverage: 100.0% of statements
Success: Tests passed.

goos: windows
goarch: amd64
pkg: github.com/pallid/fio
BenchmarkSetFullName-8              	100000000	        20.2 ns/op	       0 B/op	       0 allocs/op
BenchmarkGetPartsOfFullName-8       	 3000000	       550 ns/op	     224 B/op	       7 allocs/op
BenchmarkGetLastNameAndInitials-8   	 1000000	      1689 ns/op	     474 B/op	      23 allocs/op
PASS
coverage: 100.0% of statements
ok  	github.com/pallid/fio	6.143s
Success: Benchmarks passed.