Run the comment converter on libcrypto.

crypto/{asn1,x509,x509v3,pem} were skipped as they are still OpenSSL
style.

Change-Id: I3cd9a60e1cb483a981aca325041f3fbce294247c
Reviewed-on: https://boringssl-review.googlesource.com/19504
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
diff --git a/crypto/thread_pthread.c b/crypto/thread_pthread.c
index d9e87f2..90b3d60 100644
--- a/crypto/thread_pthread.c
+++ b/crypto/thread_pthread.c
@@ -173,4 +173,4 @@
   return 1;
 }
 
-#endif  /* OPENSSL_PTHREADS */
+#endif  // OPENSSL_PTHREADS