process: fix output truncated

Fixes: #61337

Author: mohd-akram

lib/internal/process/execution.js

@@ -454,10 +454,17 @@ function runScriptInContext(name, body, breakFirstLine, print, module, baseUrl,
   });
   if (print) {
     const { log } = require('internal/console/global');
+    let printed = false;
 
-    process.on('exit', () => {
+    process.once('beforeExit', () => {
+      printed = true;
       log(result);
     });
+
+    process.once('exit', () => {
+      if (!printed)
+        log(result);
+    });
   }
   if (origModule !== undefined)
     globalThis.module = origModule;

test/parallel/test-cli-eval.js

@@ -115,6 +115,12 @@ child.exec(...common.escapePOSIXShell`"${process.execPath}" -p "\\-42"`, common.
   assert.strictEqual(stderr, '');
 }));
 
+// Long output should not be truncated.
+child.exec(...common.escapePOSIXShell`"${process.execPath}" -p "'1'.repeat(1e5)"`, common.mustSucceed((stdout, stderr) => {
+  assert.strictEqual(stdout, `${'1'.repeat(1e5)}\n`);
+  assert.strictEqual(stderr, '');
+}));
+
 child.exec(...common.escapePOSIXShell`"${process.execPath}" --use-strict -p process.execArgv`,
            common.mustSucceed((stdout, stderr) => {
              assert.strictEqual(