Update vendor (#1265)

vendor/github.com/wiggin77/merror/.gitignore

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+# Binaries for programs and plugins
+*.exe
+*.exe~
+*.dll
+*.so
+*.dylib
+
+# Test binary, build with `go test -c`
+*.test
+
+# Output of the go coverage tool, specifically when used with LiteIDE
+*.out

vendor/github.com/wiggin77/merror/LICENSE

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+MIT License
+
+Copyright (c) 2018 wiggin77
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

vendor/github.com/wiggin77/merror/README.md

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+# merror
+Multiple Error aggregator for Golang.

vendor/github.com/wiggin77/merror/format.go

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+package merror
+
+import (
+	"fmt"
+	"strings"
+)
+
+// FormatterFunc is a function that converts a merror
+// to a string.
+type FormatterFunc func(merr *MError) string
+
+// GlobalFormatter is the global merror formatter.
+// Set this to a custom formatter if desired.
+var GlobalFormatter = defaultFormatter
+
+// defaultFormatter
+func defaultFormatter(merr *MError) string {
+	count := 0
+	overflow := 0
+
+	var format func(sb *strings.Builder, merr *MError, indent string)
+	format = func(sb *strings.Builder, merr *MError, indent string) {
+		count += merr.Len()
+		overflow += merr.Overflow()
+
+		fmt.Fprintf(sb, "%sMError:\n", indent)
+		for _, err := range merr.Errors() {
+			if e, ok := err.(*MError); ok {
+				format(sb, e, indent+"  ")
+			} else {
+				fmt.Fprintf(sb, "%s%s\n", indent, err.Error())
+			}
+		}
+	}
+
+	sb := &strings.Builder{}
+	format(sb, merr, "")
+	fmt.Fprintf(sb, "%d errors total.\n", count)
+	if merr.overflow > 0 {
+		fmt.Fprintf(sb, "%d errors truncated.\n", overflow)
+	}
+	return sb.String()
+}

vendor/github.com/wiggin77/merror/go.mod

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+module github.com/wiggin77/merror

vendor/github.com/wiggin77/merror/merror.go

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+package merror
+
+// MError represents zero or more errors that can be
+// accumulated via the `Append` method.
+type MError struct {
+	cap       int
+	errors    []error
+	overflow  int
+	formatter FormatterFunc
+}
+
+// New returns a new instance of `MError` with no limit on the
+// number of errors that can be appended.
+func New() *MError {
+	me := &MError{}
+	me.errors = make([]error, 0, 10)
+	return me
+}
+
+// NewWithCap returns a new instance of `MError` with a maximum
+// capacity of `cap` errors. If exceeded only the overflow counter
+// will be incremented.
+//
+// A `cap` of zero of less means no cap and max size of a slice
+// on the current platform is the upper bound.
+func NewWithCap(cap int) *MError {
+	me := New()
+	me.cap = cap
+	return me
+}
+
+// Append adds an error to the aggregated error list.
+func (me *MError) Append(err error) {
+	if err == nil {
+		return
+	}
+	if me.cap > 0 && len(me.errors) >= me.cap {
+		me.overflow++
+	} else {
+		me.errors = append(me.errors, err)
+	}
+}
+
+// Errors returns an array of the `error` instances that have been
+// appended to this `MError`.
+func (me *MError) Errors() []error {
+	return me.errors
+}
+
+// Len returns the number of errors that have been appended.
+func (me *MError) Len() int {
+	return len(me.errors)
+}
+
+// Overflow returns the number of errors that have been truncated
+// because maximum capacity was exceeded.
+func (me *MError) Overflow() int {
+	return me.overflow
+}
+
+// SetFormatter sets the `FormatterFunc` to be used when `Error` is
+// called. The previous `FormatterFunc` is returned.
+func (me *MError) SetFormatter(f FormatterFunc) (old FormatterFunc) {
+	old = me.formatter
+	me.formatter = f
+	return
+}
+
+// ErrorOrNil returns nil if this `MError` contains no errors,
+// otherwise this `MError` is returned.
+func (me *MError) ErrorOrNil() error {
+	if me == nil || len(me.errors) == 0 {
+		return nil
+	}
+	return me
+}
+
+// Error returns a string representation of this MError.
+// The output format depends on the `Formatter` set for this
+// merror instance, or the global formatter if none set.
+func (me *MError) Error() string {
+	f := me.formatter
+	if f == nil {
+		f = GlobalFormatter
+	}
+	return f(me)
+}