cmd/geth: remove tablewriter dependency and implement manual output formatting

cmd/geth/dbcmd.go

@@ -760,11 +760,17 @@ func showMetaData(ctx *cli.Context) error {
 		data = append(data, []string{"headHeader.Root", fmt.Sprintf("%v", h.Root)})
 		data = append(data, []string{"headHeader.Number", fmt.Sprintf("%d (%#x)", h.Number, h.Number)})
 	}
-	table := tablewriter.NewWriter(os.Stdout)
-	table.SetHeader([]string{"Field", "Value"})
-	table.AppendBulk(data)
-	table.Render()
-	return nil
+	table.SetHeader([]string{"Key", "Value"})
+
+for key, value := range stats {
+        table.Append([]string{key, fmt.Sprintf("%v", value)})
+}
+
+fmt.Println("Key\tValue")
+for key, value := range stats {
+    fmt.Printf("%s\t%v\n", key, value)
+}
+return nil
 }
 
 func inspectAccount(db *triedb.Database, start uint64, end uint64, address common.Address, raw bool) error {

core/rawdb/database_tablewriter_tinygo.go

@@ -206,3 +206,11 @@ func (t *Table) printRow(row []string, widths []int) {
 	}
 	fmt.Fprintln(t.out)
 }
+package rawdb
+
+import "io"
+
+// TinyGo doesn't support table formatting; use minimal placeholder.
+type Table struct{}
+
+func NewTableWriter(w io.Writer) *Table { return &Table{} }

core/rawdb/database_tablewriter_unix.go

@@ -19,15 +19,13 @@
 
 package rawdb
 
-import (
-	"io"
+import "io"
 
-	"github.com/olekukonko/tablewriter"
-)
-
-// Re-export the real tablewriter types and functions
-type Table = tablewriter.Table
-
-func newTableWriter(w io.Writer) *Table {
-	return tablewriter.NewWriter(w)
+// Table is a placeholder struct for manual table rendering.
+type Table struct {
+    w io.Writer
+}
+
+func NewTableWriter(w io.Writer) *Table {
+    return &Table{w: w}
 }

e --short HEAD

@@ -0,0 +1,4 @@
+  docs/fix-broken-links
+  docs/fix-readme-typo
+* event/simplify-conditional
+  master