Adjust root module code for github.com/olekukonko/tablewriter 1.x API

The API of the `github.com/olekukonko/tablewriter` module was completely redesigned prior to the 1.0.0 release. This
made it incompatible with the code written for the API of the 0.0.x versions of the module.

These code changes are purely refactoring. They do not result in any change to the output of Arduino Lint.

The previous version of `github.com/olekukonko/tablewriter` had a bug that caused it to incorrectly add a blank line
when the cell content contained an explicit line break. That bug has been fixed, and so the code previously required to
work around the bug has been removed.

internal/result/result.go

@@ -34,6 +34,8 @@ import (
 	"github.com/arduino/arduino-lint/internal/rule/ruleresult"
 	"github.com/arduino/go-paths-helper"
 	"github.com/olekukonko/tablewriter"
+	"github.com/olekukonko/tablewriter/renderer"
+	"github.com/olekukonko/tablewriter/tw"
 )
 
 // Results is the global instance of the rule results result.Type struct
@@ -126,18 +128,46 @@ func (results *Type) Record(lintedProject project.Type, ruleConfiguration ruleco
 		prefix := fmt.Sprintf("%s: ", level)
 
 		formattedOutput := &strings.Builder{}
-		table := tablewriter.NewWriter(formattedOutput)
-		table.SetBorder(false)
-		table.SetColumnSeparator("")
-		table.SetNoWhiteSpace(true)
-		table.SetColWidth(width - len(prefix))
-		table.SetReflowDuringAutoWrap(false) // Reflow removes explicit line breaks.
-		table.Append([]string{prefix, message})
-		table.Render()
-		// Remove blank lines on explicit line breaks caused by tablewriter bug.
-		cleanedOutput := blankLineRegexp.ReplaceAllLiteralString(formattedOutput.String(), "\n")
-
-		return cleanedOutput
+
+		tableConfigBuilder := tablewriter.NewConfigBuilder()
+		// Configure column widths so that the text will be wrapped to the appropriate width.
+		tableConfigBuilder.ForColumn(0).WithMaxWidth(len(prefix))
+		tableConfigBuilder.ForColumn(1).WithMaxWidth(width - len(prefix))
+		// A trailing space is intentionally added to the "prefix" string. Trimming must be disabled to preserve that space.
+		tableConfigBuilder.WithTrimSpace(tw.Off)
+		tableConfig := tableConfigBuilder.Build()
+
+		tableRendition := tw.Rendition{
+			// Do not add border characters to the table.
+			Borders: tw.BorderNone,
+			Settings: tw.Settings{
+				/*
+					Do not add a separator character between columns. The trailing space on the "prefix" string serves as the
+					separator.
+				*/
+				Separators: tw.SeparatorsNone,
+			},
+		}
+
+		tableRenderer := renderer.NewBlueprint(tableRendition)
+
+		table := tablewriter.NewTable(
+			formattedOutput,
+			tablewriter.WithConfig(tableConfig),
+			tablewriter.WithRenderer(tableRenderer),
+			// Do not add margins to the cell content.
+			tablewriter.WithPadding(tw.PaddingNone),
+		)
+
+		if err := table.Append([]string{prefix, message}); err != nil {
+			panic(err)
+		}
+
+		if err := table.Render(); err != nil {
+			panic(err)
+		}
+
+		return formattedOutput.String()
 	}
 
 	if configuration.Verbose() {