diff --git a/scripts/find-unused-diganostic-messages.mjs b/scripts/find-unused-diganostic-messages.mjs
index 0b2ddbdd41f6a..9d82fad05763f 100644
--- a/scripts/find-unused-diganostic-messages.mjs
+++ b/scripts/find-unused-diganostic-messages.mjs
@@ -1,31 +1,31 @@
-// This file requires a modern version of node 14+, and grep to be available.
-
-// node scripts/find-unused-diagnostic-messages.mjs
-import { execSync } from "child_process";
-import { readFileSync } from "fs";
-import { EOL } from "os";
-
-const diags = readFileSync("src/compiler/diagnosticInformationMap.generated.ts", "utf8");
-const startOfDiags = diags.split("export const Diagnostics")[1];
-
-/** @type {string[]} */
-const missingNames = [];
-startOfDiags.split(EOL).forEach(line => {
-    if (!line.includes(":")) return;
-    const diagName = line.split(":")[0].trim();
-
-    try {
-        execSync(`grep -rnw 'src' -e 'Diagnostics.${diagName}'`).toString();
-        process.stdout.write(".");
-    }
-    catch {
-        missingNames.push(diagName);
-        process.stdout.write("x");
-    }
-});
-
-if (missingNames.length) {
-    process.exitCode = 1;
-    console.log("Could not find usage of these diagnostics in the codebase:");
-    console.log(missingNames);
-}
+// This file requires a modern version of node 14+, and grep to be available.
+
+// node scripts/find-unused-diagnostic-messages.mjs
+import { execFileSync } from "child_process";
+import { readFileSync } from "fs";
+import { EOL } from "os";
+
+const diags = readFileSync("src/compiler/diagnosticInformationMap.generated.ts", "utf8");
+const startOfDiags = diags.split("export const Diagnostics")[1];
+
+/** @type {string[]} */
+const missingNames = [];
+startOfDiags.split(EOL).forEach(line => {
+    if (!line.includes(":")) return;
+    const diagName = line.split(":")[0].trim();
+
+    try {
+        execFileSync("grep", ["-rnw", "src", "-e", `Diagnostics.${diagName}`]);
+        process.stdout.write(".");
+    }
+    catch {
+        missingNames.push(diagName);
+        process.stdout.write("x");
+    }
+});
+
+if (missingNames.length) {
+    process.exitCode = 1;
+    console.log("Could not find usage of these diagnostics in the codebase:");
+    console.log(missingNames);
+}