CLI: drop blank-line separation in the root command tree

Blank lines between groups looked worse than the tight layout; render all groups
without separators.

Author: talagluck

packages/cli/src/help-tree.ts

@@ -94,26 +94,19 @@ function compactSection(cmd: Command, helper: Help): string {
     // Leave room for the value column; never wrap narrower than 20 cols.
     const wrapWidth = Math.max(20, termWidth - valueCol);
 
-    // Render each group to its own block of lines (a label line plus any wrapped
-    // continuation lines).
-    const blocks = rows.map((row) => {
+    const lines: string[] = [];
+    for (const row of rows) {
         const label = INDENT + row.name.padEnd(nameWidth + 2);
         if (row.children.length === 0) {
-            return [label.trimEnd()];
+            lines.push(label.trimEnd());
+            continue;
         }
         const wrapped = wrapTokens(row.children, wrapWidth);
-        return [label + wrapped[0], ...wrapped.slice(1).map((w) => ' '.repeat(valueCol) + w)];
-    });
-
-    // Separate every group with a blank line so each reads as one unit and the
-    // wrapped groups' continuation lines never look like separate entries.
-    const lines: string[] = [];
-    blocks.forEach((block, i) => {
-        if (i > 0) {
-            lines.push('');
+        lines.push(label + wrapped[0]);
+        for (let i = 1; i < wrapped.length; i++) {
+            lines.push(' '.repeat(valueCol) + wrapped[i]);
         }
-        lines.push(...block);
-    });
+    }
 
     return `\nCommand groups (nested):\n${lines.join('\n')}\n`;
 }