update deps; experiment: log security

vendor/github.com/yuin/goldmark/parser/paragraph.go

@@ -3,6 +3,7 @@ package parser
 import (
 	"github.com/yuin/goldmark/ast"
 	"github.com/yuin/goldmark/text"
+	"github.com/yuin/goldmark/util"
 )
 
 type paragraphParser struct {
@@ -33,9 +34,8 @@ func (b *paragraphParser) Open(parent ast.Node, reader text.Reader, pc Context)
 }
 
 func (b *paragraphParser) Continue(node ast.Node, reader text.Reader, pc Context) State {
-	_, segment := reader.PeekLine()
-	segment = segment.TrimLeftSpace(reader.Source())
-	if segment.IsEmpty() {
+	line, segment := reader.PeekLine()
+	if util.IsBlank(line) {
 		return Close
 	}
 	node.Lines().Append(segment)
@@ -44,13 +44,14 @@ func (b *paragraphParser) Continue(node ast.Node, reader text.Reader, pc Context
 }
 
 func (b *paragraphParser) Close(node ast.Node, reader text.Reader, pc Context) {
-	parent := node.Parent()
-	if parent == nil {
-		// paragraph has been transformed
-		return
-	}
 	lines := node.Lines()
 	if lines.Len() != 0 {
+		// trim leading spaces
+		for i := 0; i < lines.Len(); i++ {
+			l := lines.At(i)
+			lines.Set(i, l.TrimLeftSpace(reader.Source()))
+		}
+
 		// trim trailing spaces
 		length := lines.Len()
 		lastLine := node.Lines().At(length - 1)