Fixed the return code of RAND_query_egd_bytes when connect fails.

Reviewed-by: NRich Salz <rsalz@openssl.org>
Reviewed-by: NRichard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/1886)

crypto/rand/rand_egd.c

@@ -133,6 +133,7 @@ int RAND_query_egd_bytes(const char *path, unsigned char *buf, int bytes)
                 break;
 #  endif
             default:
+                ret = -1;
                 goto err;       /* failure */
             }
         }
@@ -230,9 +231,7 @@ int RAND_egd_bytes(const char *path, int bytes)
     int num, ret = 0;
 
     num = RAND_query_egd_bytes(path, NULL, bytes);
-    if (num < 1)
-        goto err;
-    if (RAND_status() == 1)
+    if (num < 1 || RAND_status() == 1)
         ret = num;
  err:
     return (ret);