Added check for trailing whitespaces and corrected existing violations.

benchmarks/crypto.js

Index: benchmarks/crypto.js
diff --git a/benchmarks/crypto.js b/benchmarks/crypto.js
index ffa69b53bbfe075a1a3bcc991d55dc46750ea55f..531ad456e027495aea2d03019ebe081fbf7648c4 100644
--- a/benchmarks/crypto.js
+++ b/benchmarks/crypto.js
@@ -1406,7 +1406,7 @@ function rng_seed_int(x) {
 
 // Mix in the current time (w/milliseconds) into the pool
 function rng_seed_time() {
-  // Use pre-computed date to avoid making the benchmark 
+  // Use pre-computed date to avoid making the benchmark
   // results dependent on the current date.
   rng_seed_int(1122926989487);
 }