generate doc with indentation: compatable for windows \r\n

pkg/swagger/generator/template_repo.go

@@ -21,6 +21,7 @@ import (
 	"log"
 	"path"
 	"path/filepath"
+	"runtime"
 	"strings"
 	"text/template"
 	"text/template/parse"
@@ -488,9 +489,17 @@ func padSurround(entry, padWith string, i, ln int) string {
 	return strings.Join(res, ",")
 }
 
+// padDocument indent multi line document with given pad
 func padDocument(str string, pad string) string {
-	// indent multi line document with given pad
-	lines := strings.Split(str, "\n")
+	// get the OS name
+	// set the appropriate line separator
+	var lineSeparator string
+	if runtime.GOOS == "windows" {
+		lineSeparator = "\r\n"
+	} else {
+		lineSeparator = "\n"
+	}
+	lines := strings.Split(str, lineSeparator)
 	paddingLines := make([]string, 0, len(lines))
 	for _, line := range lines {
 		paddingLine := line
@@ -500,7 +509,7 @@ func padDocument(str string, pad string) string {
 		paddingLines = append(paddingLines, paddingLine)
 	}
 	// no indenting before cascading empty lines
-	return strings.Join(paddingLines, "\n")
+	return strings.Join(paddingLines, lineSeparator)
 }
 
 func padComment(str string, pads ...string) string {