Fix linting errors (#2).

.golangci.yml

@@ -10,8 +10,21 @@ linters:
     - gocritic
     # This linter goes crazy for nothing (almost).
     - funlen
+    # While "_test" package naming idiom is good - it isn't good for this
+    # library (at least for now).
+    - testpackage
 linters-settings:
   lll:
     line-length: 420
   gocyclo:
     min-complexity: 40
+issues:
+  exclude-rules:
+    # We do not need static errors in tests for now.
+    - path: validations_test.go
+      linters: 
+        - goerr113
+    # ...and in example.
+    - path: example/main.go
+      linters:
+        - goerr113

validations.go

@@ -86,7 +86,7 @@ func Validate(thing interface{}, validatorName string, optional ...interface{})
 }
 
 // ValidateMany launches many validators using one-line-call.
-// Optional might be used for passing parameters to validators, wher
+// Optional might be used for passing parameters to validators, where
 // key is a validator name and value (which is []interface{})
 // is a slice of parameters.
 func ValidateMany(thing interface{}, validatorNames []string, optional map[string][]interface{}) []interface{} {

validations_test.go

@@ -103,6 +103,7 @@ func BenchmarkRegisterValidatorAsync(b *testing.B) {
 					return nil
 				},
 			)
+
 			w.Done()
 		}()
 
@@ -419,6 +420,7 @@ func BenchmarkUnregisterValidatorAsync(b *testing.B) {
 
 		go func() {
 			_ = UnregisterValidator("string_test_validator_" + strconv.Itoa(i))
+
 			w.Done()
 		}()